diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.axf b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.axf
index 34e0866..6e58c4e 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.axf and b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.axf differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.build_log.htm b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.build_log.htm
index 43f4a25..7e35922 100644
--- a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.build_log.htm
+++ b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.build_log.htm
@@ -22,13 +22,13 @@ Dialog DLL:      TARMSTM.DLL V1.66.0.0
  
 <h2>Project:</h2>
 C:\Users\momof\Documents\projet_voilier\keil_project\MDK-ARM\Project.uvprojx
-Project File Date:  11/09/2020
+Project File Date:  11/11/2020
 
 <h2>Output:</h2>
 *** Using Compiler 'V5.06 update 6 (build 750)', folder: 'C:\Keil_v5\ARM\ARMCC\Bin'
 Build target 'Simulateur'
 linking...
-Program Size: Code=2412 RO-data=268 RW-data=44 ZI-data=1028  
+Program Size: Code=2672 RO-data=268 RW-data=40 ZI-data=1024  
 "NUCLEO-F103RB\NUCLEO-F103RB.axf" - 0 Error(s), 0 Warning(s).
 
 <h2>Software Packages used:</h2>
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.htm b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.htm
index 2561666..46696e3 100644
--- a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.htm
+++ b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.htm
@@ -3,11 +3,11 @@
 <title>Static Call Graph - [NUCLEO-F103RB\NUCLEO-F103RB.axf]</title></head>
 <body><HR>
 <H1>Static Call Graph for image NUCLEO-F103RB\NUCLEO-F103RB.axf</H1><HR>
-<BR><P>#&#060CALLGRAPH&#062# ARM Linker, 5060750: Last Updated: Mon Nov 09 20:40:37 2020
+<BR><P>#&#060CALLGRAPH&#062# ARM Linker, 5060750: Last Updated: Wed Nov 11 15:46:52 2020
 <BR><P>
-<H3>Maximum Stack Usage =         96 bytes + Unknown(Cycles, Untraceable Function Pointers)</H3><H3>
+<H3>Maximum Stack Usage =        136 bytes + Unknown(Cycles, Untraceable Function Pointers)</H3><H3>
 Call chain for Maximum Stack Depth:</H3>
-main &rArr; accelero_init &rArr; LL_ADC_REG_Init
+main &rArr; is_level_enough &rArr; get_battery_level &rArr; __aeabi_dmul &rArr; _double_epilogue &rArr; _double_round
 <P>
 <H3>
 Mutually Recursive functions
@@ -90,25 +90,25 @@ Global Symbols
 <P><STRONG><a name="[37]"></a>__main</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry.o(.ARM.Collect$$$$00000000))
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(.text)
 </UL>
-<P><STRONG><a name="[52]"></a>_main_stk</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry2.o(.ARM.Collect$$$$00000001))
+<P><STRONG><a name="[51]"></a>_main_stk</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry2.o(.ARM.Collect$$$$00000001))
 
 <P><STRONG><a name="[38]"></a>_main_scatterload</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry5.o(.ARM.Collect$$$$00000004))
 <BR><BR>[Calls]<UL><LI><a href="#[39]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__scatterload
 </UL>
 
-<P><STRONG><a name="[40]"></a>__main_after_scatterload</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry5.o(.ARM.Collect$$$$00000004))
+<P><STRONG><a name="[42]"></a>__main_after_scatterload</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry5.o(.ARM.Collect$$$$00000004))
 <BR><BR>[Called By]<UL><LI><a href="#[39]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__scatterload
 </UL>
 
-<P><STRONG><a name="[53]"></a>_main_clock</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry7b.o(.ARM.Collect$$$$00000008))
+<P><STRONG><a name="[52]"></a>_main_clock</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry7b.o(.ARM.Collect$$$$00000008))
 
-<P><STRONG><a name="[54]"></a>_main_cpp_init</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry8b.o(.ARM.Collect$$$$0000000A))
+<P><STRONG><a name="[53]"></a>_main_cpp_init</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry8b.o(.ARM.Collect$$$$0000000A))
 
-<P><STRONG><a name="[55]"></a>_main_init</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry9a.o(.ARM.Collect$$$$0000000B))
+<P><STRONG><a name="[54]"></a>_main_init</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry9a.o(.ARM.Collect$$$$0000000B))
 
-<P><STRONG><a name="[56]"></a>__rt_final_cpp</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry10a.o(.ARM.Collect$$$$0000000D))
+<P><STRONG><a name="[55]"></a>__rt_final_cpp</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry10a.o(.ARM.Collect$$$$0000000D))
 
-<P><STRONG><a name="[57]"></a>__rt_final_exit</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry11a.o(.ARM.Collect$$$$0000000F))
+<P><STRONG><a name="[56]"></a>__rt_final_exit</STRONG> (Thumb, 0 bytes, Stack size unknown bytes, entry11a.o(.ARM.Collect$$$$0000000F))
 
 <P><STRONG><a name="[0]"></a>Reset_Handler</STRONG> (Thumb, 8 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
@@ -297,96 +297,125 @@ Global Symbols
 <P><STRONG><a name="[a]"></a>WWDG_IRQHandler</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, startup_stm32f103xb.o(.text))
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
 </UL>
-<P><STRONG><a name="[3a]"></a>__aeabi_ddiv</STRONG> (Thumb, 222 bytes, Stack size 32 bytes, ddiv.o(.text))
+<P><STRONG><a name="[3a]"></a>__aeabi_dmul</STRONG> (Thumb, 228 bytes, Stack size 48 bytes, dmul.o(.text))
+<BR><BR>[Stack]<UL><LI>Max Depth = 88<LI>Call Chain = __aeabi_dmul &rArr; _double_epilogue &rArr; _double_round
+</UL>
+<BR>[Calls]<UL><LI><a href="#[3b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_epilogue
+</UL>
+<BR>[Called By]<UL><LI><a href="#[4c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;get_battery_level
+</UL>
+
+<P><STRONG><a name="[3c]"></a>__aeabi_ddiv</STRONG> (Thumb, 222 bytes, Stack size 32 bytes, ddiv.o(.text))
 <BR><BR>[Stack]<UL><LI>Max Depth = 40<LI>Call Chain = __aeabi_ddiv &rArr; _double_round
 </UL>
-<BR>[Calls]<UL><LI><a href="#[3b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_round
+<BR>[Calls]<UL><LI><a href="#[3d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_round
 </UL>
-<BR>[Called By]<UL><LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_angle_bon
+<BR>[Called By]<UL><LI><a href="#[4c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;get_battery_level
 </UL>
 
-<P><STRONG><a name="[3c]"></a>__aeabi_i2d</STRONG> (Thumb, 34 bytes, Stack size 16 bytes, dflti.o(.text))
-<BR><BR>[Stack]<UL><LI>Max Depth = 56<LI>Call Chain = __aeabi_i2d &rArr; _double_epilogue &rArr; _double_round
+<P><STRONG><a name="[3e]"></a>__aeabi_ui2f</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, ffltui.o(.text))
+<BR><BR>[Stack]<UL><LI>Max Depth = 4<LI>Call Chain = __aeabi_ui2f &rArr; _float_epilogue
 </UL>
-<BR>[Calls]<UL><LI><a href="#[3d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_epilogue
+<BR>[Calls]<UL><LI><a href="#[3f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_float_epilogue
 </UL>
-<BR>[Called By]<UL><LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_angle_bon
+<BR>[Called By]<UL><LI><a href="#[4c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;get_battery_level
 </UL>
 
-<P><STRONG><a name="[4c]"></a>__aeabi_cdrcmple</STRONG> (Thumb, 48 bytes, Stack size 0 bytes, cdrcmple.o(.text))
-<BR><BR>[Called By]<UL><LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_angle_bon
+<P><STRONG><a name="[4d]"></a>__aeabi_f2d</STRONG> (Thumb, 38 bytes, Stack size 0 bytes, f2d.o(.text))
+<BR><BR>[Called By]<UL><LI><a href="#[4f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;is_level_enough
+<LI><a href="#[4c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;get_battery_level
 </UL>
 
-<P><STRONG><a name="[58]"></a>__I$use$fp</STRONG> (Thumb, 0 bytes, Stack size 8 bytes, iusefp.o(.text), UNUSED)
+<P><STRONG><a name="[57]"></a>__aeabi_cdcmpeq</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, cdcmple.o(.text), UNUSED)
 
-<P><STRONG><a name="[3b]"></a>_double_round</STRONG> (Thumb, 30 bytes, Stack size 8 bytes, depilogue.o(.text))
+<P><STRONG><a name="[50]"></a>__aeabi_cdcmple</STRONG> (Thumb, 48 bytes, Stack size 0 bytes, cdcmple.o(.text))
+<BR><BR>[Called By]<UL><LI><a href="#[4f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;is_level_enough
+</UL>
+
+<P><STRONG><a name="[4e]"></a>__aeabi_d2f</STRONG> (Thumb, 56 bytes, Stack size 8 bytes, d2f.o(.text))
+<BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = __aeabi_d2f
+</UL>
+<BR>[Called By]<UL><LI><a href="#[4c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;get_battery_level
+</UL>
+
+<P><STRONG><a name="[58]"></a>__I$use$fp</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, iusefp.o(.text), UNUSED)
+
+<P><STRONG><a name="[59]"></a>_float_round</STRONG> (Thumb, 18 bytes, Stack size 0 bytes, fepilogue.o(.text), UNUSED)
+
+<P><STRONG><a name="[3f]"></a>_float_epilogue</STRONG> (Thumb, 92 bytes, Stack size 4 bytes, fepilogue.o(.text))
+<BR><BR>[Stack]<UL><LI>Max Depth = 4<LI>Call Chain = _float_epilogue
+</UL>
+<BR>[Called By]<UL><LI><a href="#[3e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_ui2f
+</UL>
+
+<P><STRONG><a name="[3d]"></a>_double_round</STRONG> (Thumb, 30 bytes, Stack size 8 bytes, depilogue.o(.text))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = _double_round
 </UL>
-<BR>[Called By]<UL><LI><a href="#[3a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_ddiv
-<LI><a href="#[3d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_epilogue
+<BR>[Called By]<UL><LI><a href="#[3c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_ddiv
+<LI><a href="#[3b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_epilogue
 </UL>
 
-<P><STRONG><a name="[3d]"></a>_double_epilogue</STRONG> (Thumb, 156 bytes, Stack size 32 bytes, depilogue.o(.text))
+<P><STRONG><a name="[3b]"></a>_double_epilogue</STRONG> (Thumb, 156 bytes, Stack size 32 bytes, depilogue.o(.text))
 <BR><BR>[Stack]<UL><LI>Max Depth = 40<LI>Call Chain = _double_epilogue &rArr; _double_round
 </UL>
-<BR>[Calls]<UL><LI><a href="#[3f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_llsr
-<LI><a href="#[3e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_llsl
-<LI><a href="#[3b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_round
+<BR>[Calls]<UL><LI><a href="#[41]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_llsr
+<LI><a href="#[40]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_llsl
+<LI><a href="#[3d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_round
 </UL>
-<BR>[Called By]<UL><LI><a href="#[3c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_i2d
+<BR>[Called By]<UL><LI><a href="#[3a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_dmul
 </UL>
 
 <P><STRONG><a name="[39]"></a>__scatterload</STRONG> (Thumb, 28 bytes, Stack size 0 bytes, init.o(.text))
-<BR><BR>[Calls]<UL><LI><a href="#[40]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__main_after_scatterload
+<BR><BR>[Calls]<UL><LI><a href="#[42]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__main_after_scatterload
 </UL>
 <BR>[Called By]<UL><LI><a href="#[38]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_main_scatterload
 </UL>
 
-<P><STRONG><a name="[59]"></a>__scatterload_rt2</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, init.o(.text), UNUSED)
+<P><STRONG><a name="[5a]"></a>__scatterload_rt2</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, init.o(.text), UNUSED)
 
-<P><STRONG><a name="[3e]"></a>__aeabi_llsl</STRONG> (Thumb, 30 bytes, Stack size 0 bytes, llshl.o(.text))
-<BR><BR>[Called By]<UL><LI><a href="#[3d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_epilogue
+<P><STRONG><a name="[40]"></a>__aeabi_llsl</STRONG> (Thumb, 30 bytes, Stack size 0 bytes, llshl.o(.text))
+<BR><BR>[Called By]<UL><LI><a href="#[3b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_epilogue
 </UL>
 
-<P><STRONG><a name="[5a]"></a>_ll_shift_l</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, llshl.o(.text), UNUSED)
+<P><STRONG><a name="[5b]"></a>_ll_shift_l</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, llshl.o(.text), UNUSED)
 
-<P><STRONG><a name="[3f]"></a>__aeabi_llsr</STRONG> (Thumb, 32 bytes, Stack size 0 bytes, llushr.o(.text))
-<BR><BR>[Called By]<UL><LI><a href="#[3d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_epilogue
+<P><STRONG><a name="[41]"></a>__aeabi_llsr</STRONG> (Thumb, 32 bytes, Stack size 0 bytes, llushr.o(.text))
+<BR><BR>[Called By]<UL><LI><a href="#[3b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;_double_epilogue
 </UL>
 
-<P><STRONG><a name="[5b]"></a>_ll_ushift_r</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, llushr.o(.text), UNUSED)
+<P><STRONG><a name="[5c]"></a>_ll_ushift_r</STRONG> (Thumb, 0 bytes, Stack size 0 bytes, llushr.o(.text), UNUSED)
 
-<P><STRONG><a name="[41]"></a>LL_ADC_Init</STRONG> (Thumb, 120 bytes, Stack size 16 bytes, stm32f1xx_ll_adc.o(i.LL_ADC_Init))
+<P><STRONG><a name="[43]"></a>LL_ADC_Init</STRONG> (Thumb, 120 bytes, Stack size 16 bytes, stm32f1xx_ll_adc.o(i.LL_ADC_Init))
 <BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = LL_ADC_Init
 </UL>
-<BR>[Calls]<UL><LI><a href="#[43]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_IsEnabled
-<LI><a href="#[42]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;assert_failed
+<BR>[Calls]<UL><LI><a href="#[45]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_IsEnabled
+<LI><a href="#[44]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;assert_failed
 </UL>
-<BR>[Called By]<UL><LI><a href="#[50]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_init
+<BR>[Called By]<UL><LI><a href="#[4b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;alimentation_init
 </UL>
 
-<P><STRONG><a name="[44]"></a>LL_ADC_REG_Init</STRONG> (Thumb, 454 bytes, Stack size 16 bytes, stm32f1xx_ll_adc.o(i.LL_ADC_REG_Init))
+<P><STRONG><a name="[46]"></a>LL_ADC_REG_Init</STRONG> (Thumb, 454 bytes, Stack size 16 bytes, stm32f1xx_ll_adc.o(i.LL_ADC_REG_Init))
 <BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = LL_ADC_REG_Init
 </UL>
-<BR>[Calls]<UL><LI><a href="#[43]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_IsEnabled
-<LI><a href="#[42]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;assert_failed
+<BR>[Calls]<UL><LI><a href="#[45]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_IsEnabled
+<LI><a href="#[44]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;assert_failed
 </UL>
-<BR>[Called By]<UL><LI><a href="#[50]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_init
+<BR>[Called By]<UL><LI><a href="#[4b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;alimentation_init
 </UL>
 
-<P><STRONG><a name="[46]"></a>LL_Init1msTick</STRONG> (Thumb, 28 bytes, Stack size 0 bytes, stm32f1xx_ll_utils.o(i.LL_Init1msTick))
-<BR><BR>[Called By]<UL><LI><a href="#[45]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
+<P><STRONG><a name="[48]"></a>LL_Init1msTick</STRONG> (Thumb, 28 bytes, Stack size 0 bytes, stm32f1xx_ll_utils.o(i.LL_Init1msTick))
+<BR><BR>[Called By]<UL><LI><a href="#[47]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 </UL>
 
-<P><STRONG><a name="[47]"></a>LL_SetSystemCoreClock</STRONG> (Thumb, 6 bytes, Stack size 0 bytes, stm32f1xx_ll_utils.o(i.LL_SetSystemCoreClock))
-<BR><BR>[Called By]<UL><LI><a href="#[45]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
+<P><STRONG><a name="[49]"></a>LL_SetSystemCoreClock</STRONG> (Thumb, 6 bytes, Stack size 0 bytes, stm32f1xx_ll_utils.o(i.LL_SetSystemCoreClock))
+<BR><BR>[Called By]<UL><LI><a href="#[47]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 </UL>
 
-<P><STRONG><a name="[45]"></a>SystemClock_Config</STRONG> (Thumb, 226 bytes, Stack size 8 bytes, main.o(i.SystemClock_Config))
+<P><STRONG><a name="[47]"></a>SystemClock_Config</STRONG> (Thumb, 226 bytes, Stack size 8 bytes, main.o(i.SystemClock_Config))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = SystemClock_Config
 </UL>
-<BR>[Calls]<UL><LI><a href="#[47]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_SetSystemCoreClock
-<LI><a href="#[46]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_Init1msTick
+<BR>[Calls]<UL><LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_SetSystemCoreClock
+<LI><a href="#[48]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_Init1msTick
 </UL>
 <BR>[Called By]<UL><LI><a href="#[35]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 </UL>
@@ -397,129 +426,97 @@ Global Symbols
 <P><STRONG><a name="[23]"></a>TIM1_UP_IRQHandler</STRONG> (Thumb, 16 bytes, Stack size 8 bytes, mytimer.o(i.TIM1_UP_IRQHandler))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = TIM1_UP_IRQHandler
 </UL>
-<BR>[Calls]<UL><LI><a href="#[48]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_TIM_ClearFlag_UPDATE
+<BR>[Calls]<UL><LI><a href="#[4a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_TIM_ClearFlag_UPDATE
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
 </UL>
 <P><STRONG><a name="[26]"></a>TIM2_IRQHandler</STRONG> (Thumb, 18 bytes, Stack size 8 bytes, mytimer.o(i.TIM2_IRQHandler))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = TIM2_IRQHandler
 </UL>
-<BR>[Calls]<UL><LI><a href="#[48]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_TIM_ClearFlag_UPDATE
+<BR>[Calls]<UL><LI><a href="#[4a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_TIM_ClearFlag_UPDATE
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
 </UL>
 <P><STRONG><a name="[27]"></a>TIM3_IRQHandler</STRONG> (Thumb, 16 bytes, Stack size 8 bytes, mytimer.o(i.TIM3_IRQHandler))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = TIM3_IRQHandler
 </UL>
-<BR>[Calls]<UL><LI><a href="#[48]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_TIM_ClearFlag_UPDATE
+<BR>[Calls]<UL><LI><a href="#[4a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_TIM_ClearFlag_UPDATE
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
 </UL>
 <P><STRONG><a name="[28]"></a>TIM4_IRQHandler</STRONG> (Thumb, 16 bytes, Stack size 8 bytes, mytimer.o(i.TIM4_IRQHandler))
 <BR><BR>[Stack]<UL><LI>Max Depth = 8<LI>Call Chain = TIM4_IRQHandler
 </UL>
-<BR>[Calls]<UL><LI><a href="#[48]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_TIM_ClearFlag_UPDATE
+<BR>[Calls]<UL><LI><a href="#[4a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_TIM_ClearFlag_UPDATE
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> startup_stm32f103xb.o(RESET)
 </UL>
-<P><STRONG><a name="[5c]"></a>__scatterload_copy</STRONG> (Thumb, 14 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_copy), UNUSED)
+<P><STRONG><a name="[5d]"></a>__scatterload_copy</STRONG> (Thumb, 14 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_copy), UNUSED)
 
-<P><STRONG><a name="[5d]"></a>__scatterload_null</STRONG> (Thumb, 2 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_null), UNUSED)
+<P><STRONG><a name="[5e]"></a>__scatterload_null</STRONG> (Thumb, 2 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_null), UNUSED)
 
-<P><STRONG><a name="[5e]"></a>__scatterload_zeroinit</STRONG> (Thumb, 14 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_zeroinit), UNUSED)
+<P><STRONG><a name="[5f]"></a>__scatterload_zeroinit</STRONG> (Thumb, 14 bytes, Stack size unknown bytes, handlers.o(i.__scatterload_zeroinit), UNUSED)
 
-<P><STRONG><a name="[49]"></a>accelero_angle_bon</STRONG> (Thumb, 78 bytes, Stack size 24 bytes, accelerometer.o(i.accelero_angle_bon))
-<BR><BR>[Stack]<UL><LI>Max Depth = 80<LI>Call Chain = accelero_angle_bon &rArr; __aeabi_i2d &rArr; _double_epilogue &rArr; _double_round
+<P><STRONG><a name="[4b]"></a>alimentation_init</STRONG> (Thumb, 146 bytes, Stack size 80 bytes, alimentation.o(i.alimentation_init))
+<BR><BR>[Stack]<UL><LI>Max Depth = 96<LI>Call Chain = alimentation_init &rArr; LL_ADC_REG_Init
 </UL>
-<BR>[Calls]<UL><LI><a href="#[3c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_i2d
-<LI><a href="#[3a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_ddiv
-<LI><a href="#[4c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_cdrcmple
-<LI><a href="#[4b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_get_y
-<LI><a href="#[4a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_get_x
+<BR>[Calls]<UL><LI><a href="#[46]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_REG_Init
+<LI><a href="#[43]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_Init
 </UL>
 <BR>[Called By]<UL><LI><a href="#[35]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 </UL>
 
-<P><STRONG><a name="[4a]"></a>accelero_get_x</STRONG> (Thumb, 46 bytes, Stack size 8 bytes, accelerometer.o(i.accelero_get_x))
-<BR><BR>[Stack]<UL><LI>Max Depth = 24<LI>Call Chain = accelero_get_x &rArr; LL_ADC_REG_SetSequencerRanks
-</UL>
-<BR>[Calls]<UL><LI><a href="#[4e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_REG_StartConversionSWStart
-<LI><a href="#[4d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_REG_SetSequencerRanks
-<LI><a href="#[4f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_IsActiveFlag_EOS
-</UL>
-<BR>[Called By]<UL><LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_angle_bon
+<P><STRONG><a name="[44]"></a>assert_failed</STRONG> (Thumb, 4 bytes, Stack size 0 bytes, main.o(i.assert_failed))
+<BR><BR>[Called By]<UL><LI><a href="#[46]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_REG_Init
+<LI><a href="#[43]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_Init
 </UL>
 
-<P><STRONG><a name="[4b]"></a>accelero_get_y</STRONG> (Thumb, 46 bytes, Stack size 8 bytes, accelerometer.o(i.accelero_get_y))
-<BR><BR>[Stack]<UL><LI>Max Depth = 24<LI>Call Chain = accelero_get_y &rArr; LL_ADC_REG_SetSequencerRanks
+<P><STRONG><a name="[4c]"></a>get_battery_level</STRONG> (Thumb, 166 bytes, Stack size 32 bytes, alimentation.o(i.get_battery_level))
+<BR><BR>[Stack]<UL><LI>Max Depth = 120<LI>Call Chain = get_battery_level &rArr; __aeabi_dmul &rArr; _double_epilogue &rArr; _double_round
 </UL>
-<BR>[Calls]<UL><LI><a href="#[4e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_REG_StartConversionSWStart
-<LI><a href="#[4d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_REG_SetSequencerRanks
-<LI><a href="#[4f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_IsActiveFlag_EOS
+<BR>[Calls]<UL><LI><a href="#[3e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_ui2f
+<LI><a href="#[4d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_f2d
+<LI><a href="#[3a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_dmul
+<LI><a href="#[3c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_ddiv
+<LI><a href="#[4e]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_d2f
 </UL>
-<BR>[Called By]<UL><LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_angle_bon
+<BR>[Called By]<UL><LI><a href="#[4f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;is_level_enough
+<LI><a href="#[35]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 </UL>
 
-<P><STRONG><a name="[50]"></a>accelero_init</STRONG> (Thumb, 170 bytes, Stack size 80 bytes, accelerometer.o(i.accelero_init))
-<BR><BR>[Stack]<UL><LI>Max Depth = 96<LI>Call Chain = accelero_init &rArr; LL_ADC_REG_Init
+<P><STRONG><a name="[4f]"></a>is_level_enough</STRONG> (Thumb, 32 bytes, Stack size 16 bytes, alimentation.o(i.is_level_enough))
+<BR><BR>[Stack]<UL><LI>Max Depth = 136<LI>Call Chain = is_level_enough &rArr; get_battery_level &rArr; __aeabi_dmul &rArr; _double_epilogue &rArr; _double_round
 </UL>
-<BR>[Calls]<UL><LI><a href="#[44]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_REG_Init
-<LI><a href="#[41]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_Init
-<LI><a href="#[51]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_SetChannelSamplingTime
+<BR>[Calls]<UL><LI><a href="#[4d]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_f2d
+<LI><a href="#[50]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;__aeabi_cdcmple
+<LI><a href="#[4c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;get_battery_level
 </UL>
 <BR>[Called By]<UL><LI><a href="#[35]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;main
 </UL>
 
-<P><STRONG><a name="[42]"></a>assert_failed</STRONG> (Thumb, 4 bytes, Stack size 0 bytes, main.o(i.assert_failed))
-<BR><BR>[Called By]<UL><LI><a href="#[44]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_REG_Init
-<LI><a href="#[41]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_Init
+<P><STRONG><a name="[35]"></a>main</STRONG> (Thumb, 28 bytes, Stack size 0 bytes, main.o(i.main))
+<BR><BR>[Stack]<UL><LI>Max Depth = 136<LI>Call Chain = main &rArr; is_level_enough &rArr; get_battery_level &rArr; __aeabi_dmul &rArr; _double_epilogue &rArr; _double_round
 </UL>
-
-<P><STRONG><a name="[35]"></a>main</STRONG> (Thumb, 20 bytes, Stack size 0 bytes, main.o(i.main))
-<BR><BR>[Stack]<UL><LI>Max Depth = 96<LI>Call Chain = main &rArr; accelero_init &rArr; LL_ADC_REG_Init
-</UL>
-<BR>[Calls]<UL><LI><a href="#[50]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_init
-<LI><a href="#[49]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_angle_bon
-<LI><a href="#[45]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
+<BR>[Calls]<UL><LI><a href="#[4f]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;is_level_enough
+<LI><a href="#[4c]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;get_battery_level
+<LI><a href="#[4b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;alimentation_init
+<LI><a href="#[47]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;SystemClock_Config
 </UL>
 <BR>[Address Reference Count : 1]<UL><LI> entry9a.o(.ARM.Collect$$$$0000000B)
 </UL><P>
 <H3>
 Local Symbols
 </H3>
-<P><STRONG><a name="[4f]"></a>LL_ADC_IsActiveFlag_EOS</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, accelerometer.o(i.LL_ADC_IsActiveFlag_EOS))
-<BR><BR>[Called By]<UL><LI><a href="#[4b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_get_y
-<LI><a href="#[4a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_get_x
-</UL>
-
-<P><STRONG><a name="[4d]"></a>LL_ADC_REG_SetSequencerRanks</STRONG> (Thumb, 56 bytes, Stack size 16 bytes, accelerometer.o(i.LL_ADC_REG_SetSequencerRanks))
-<BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = LL_ADC_REG_SetSequencerRanks
-</UL>
-<BR>[Called By]<UL><LI><a href="#[4b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_get_y
-<LI><a href="#[4a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_get_x
-</UL>
-
-<P><STRONG><a name="[4e]"></a>LL_ADC_REG_StartConversionSWStart</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, accelerometer.o(i.LL_ADC_REG_StartConversionSWStart))
-<BR><BR>[Called By]<UL><LI><a href="#[4b]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_get_y
-<LI><a href="#[4a]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_get_x
-</UL>
-
-<P><STRONG><a name="[51]"></a>LL_ADC_SetChannelSamplingTime</STRONG> (Thumb, 82 bytes, Stack size 16 bytes, accelerometer.o(i.LL_ADC_SetChannelSamplingTime))
-<BR><BR>[Stack]<UL><LI>Max Depth = 16<LI>Call Chain = LL_ADC_SetChannelSamplingTime
-</UL>
-<BR>[Called By]<UL><LI><a href="#[50]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;accelero_init
-</UL>
-
-<P><STRONG><a name="[48]"></a>LL_TIM_ClearFlag_UPDATE</STRONG> (Thumb, 8 bytes, Stack size 0 bytes, mytimer.o(i.LL_TIM_ClearFlag_UPDATE))
+<P><STRONG><a name="[4a]"></a>LL_TIM_ClearFlag_UPDATE</STRONG> (Thumb, 8 bytes, Stack size 0 bytes, mytimer.o(i.LL_TIM_ClearFlag_UPDATE))
 <BR><BR>[Called By]<UL><LI><a href="#[28]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;TIM4_IRQHandler
 <LI><a href="#[27]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;TIM3_IRQHandler
 <LI><a href="#[26]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;TIM2_IRQHandler
 <LI><a href="#[23]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;TIM1_UP_IRQHandler
 </UL>
 
-<P><STRONG><a name="[43]"></a>LL_ADC_IsEnabled</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, stm32f1xx_ll_adc.o(i.LL_ADC_IsEnabled))
-<BR><BR>[Called By]<UL><LI><a href="#[44]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_REG_Init
-<LI><a href="#[41]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_Init
+<P><STRONG><a name="[45]"></a>LL_ADC_IsEnabled</STRONG> (Thumb, 10 bytes, Stack size 0 bytes, stm32f1xx_ll_adc.o(i.LL_ADC_IsEnabled))
+<BR><BR>[Called By]<UL><LI><a href="#[46]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_REG_Init
+<LI><a href="#[43]">&gt;&gt;</a>&nbsp;&nbsp;&nbsp;LL_ADC_Init
 </UL>
 <P>
 <H3>
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.lnp b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.lnp
index 75b411b..76f0886 100644
--- a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.lnp
+++ b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.lnp
@@ -1,7 +1,7 @@
 --cpu Cortex-M3
 "nucleo-f103rb\main.o"
 "nucleo-f103rb\chrono.o"
-"nucleo-f103rb\accelerometer.o"
+"nucleo-f103rb\alimentation.o"
 "nucleo-f103rb\mytimer.o"
 "nucleo-f103rb\stm32f1xx_ll_rcc.o"
 "nucleo-f103rb\stm32f1xx_ll_utils.o"
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.map b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.map
index 2b89339..f4c6dd5 100644
--- a/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.map
+++ b/keil_project/MDK-ARM/NUCLEO-F103RB/NUCLEO-F103RB.map
@@ -7,9 +7,10 @@ Section Cross References
     main.o(i.SystemClock_Config) refers to stm32f1xx_ll_utils.o(i.LL_Init1msTick) for LL_Init1msTick
     main.o(i.SystemClock_Config) refers to stm32f1xx_ll_utils.o(i.LL_SetSystemCoreClock) for LL_SetSystemCoreClock
     main.o(i.main) refers to main.o(i.SystemClock_Config) for SystemClock_Config
-    main.o(i.main) refers to accelerometer.o(i.accelero_init) for accelero_init
-    main.o(i.main) refers to accelerometer.o(i.accelero_angle_bon) for accelero_angle_bon
-    main.o(i.main) refers to main.o(.data) for angle_bon
+    main.o(i.main) refers to alimentation.o(i.alimentation_init) for alimentation_init
+    main.o(i.main) refers to alimentation.o(i.get_battery_level) for get_battery_level
+    main.o(i.main) refers to alimentation.o(i.is_level_enough) for is_level_enough
+    main.o(i.main) refers to main.o(.data) for level
     chrono.o(i.Chrono_Background) refers to chrono.o(i.LL_GPIO_IsInputPinSet) for LL_GPIO_IsInputPinSet
     chrono.o(i.Chrono_Background) refers to chrono.o(i.Chrono_Stop) for Chrono_Stop
     chrono.o(i.Chrono_Background) refers to chrono.o(i.Chrono_Start) for Chrono_Start
@@ -30,21 +31,17 @@ Section Cross References
     chrono.o(i.Chrono_Stop) refers to mytimer.o(i.MyTimer_Stop) for MyTimer_Stop
     chrono.o(i.Chrono_Stop) refers to chrono.o(.data) for Chrono_Timer
     chrono.o(i.Chrono_Task_10ms) refers to chrono.o(.data) for Chrono_Time
-    accelerometer.o(i.accelero_angle_bon) refers to accelerometer.o(i.accelero_get_x) for accelero_get_x
-    accelerometer.o(i.accelero_angle_bon) refers to accelerometer.o(i.accelero_get_y) for accelero_get_y
-    accelerometer.o(i.accelero_angle_bon) refers to dflti.o(.text) for __aeabi_i2d
-    accelerometer.o(i.accelero_angle_bon) refers to ddiv.o(.text) for __aeabi_ddiv
-    accelerometer.o(i.accelero_angle_bon) refers to cdrcmple.o(.text) for __aeabi_cdrcmple
-    accelerometer.o(i.accelero_angle_bon) refers to accelerometer.o(.data) for x
-    accelerometer.o(i.accelero_get_x) refers to accelerometer.o(i.LL_ADC_REG_SetSequencerRanks) for LL_ADC_REG_SetSequencerRanks
-    accelerometer.o(i.accelero_get_x) refers to accelerometer.o(i.LL_ADC_REG_StartConversionSWStart) for LL_ADC_REG_StartConversionSWStart
-    accelerometer.o(i.accelero_get_x) refers to accelerometer.o(i.LL_ADC_IsActiveFlag_EOS) for LL_ADC_IsActiveFlag_EOS
-    accelerometer.o(i.accelero_get_y) refers to accelerometer.o(i.LL_ADC_REG_SetSequencerRanks) for LL_ADC_REG_SetSequencerRanks
-    accelerometer.o(i.accelero_get_y) refers to accelerometer.o(i.LL_ADC_REG_StartConversionSWStart) for LL_ADC_REG_StartConversionSWStart
-    accelerometer.o(i.accelero_get_y) refers to accelerometer.o(i.LL_ADC_IsActiveFlag_EOS) for LL_ADC_IsActiveFlag_EOS
-    accelerometer.o(i.accelero_init) refers to stm32f1xx_ll_adc.o(i.LL_ADC_Init) for LL_ADC_Init
-    accelerometer.o(i.accelero_init) refers to stm32f1xx_ll_adc.o(i.LL_ADC_REG_Init) for LL_ADC_REG_Init
-    accelerometer.o(i.accelero_init) refers to accelerometer.o(i.LL_ADC_SetChannelSamplingTime) for LL_ADC_SetChannelSamplingTime
+    alimentation.o(i.alimentation_init) refers to stm32f1xx_ll_adc.o(i.LL_ADC_Init) for LL_ADC_Init
+    alimentation.o(i.alimentation_init) refers to stm32f1xx_ll_adc.o(i.LL_ADC_REG_Init) for LL_ADC_REG_Init
+    alimentation.o(i.get_battery_level) refers to ffltui.o(.text) for __aeabi_ui2f
+    alimentation.o(i.get_battery_level) refers to f2d.o(.text) for __aeabi_f2d
+    alimentation.o(i.get_battery_level) refers to dmul.o(.text) for __aeabi_dmul
+    alimentation.o(i.get_battery_level) refers to ddiv.o(.text) for __aeabi_ddiv
+    alimentation.o(i.get_battery_level) refers to d2f.o(.text) for __aeabi_d2f
+    alimentation.o(i.get_battery_level) refers to alimentation.o(.data) for battery_level
+    alimentation.o(i.is_level_enough) refers to alimentation.o(i.get_battery_level) for get_battery_level
+    alimentation.o(i.is_level_enough) refers to f2d.o(.text) for __aeabi_f2d
+    alimentation.o(i.is_level_enough) refers to cdcmple.o(.text) for __aeabi_cdcmple
     mytimer.o(i.MyTimer_Conf) refers to mytimer.o(i.LL_APB1_GRP1_EnableClock) for LL_APB1_GRP1_EnableClock
     mytimer.o(i.MyTimer_Conf) refers to stm32f1xx_ll_tim.o(i.LL_TIM_Init) for LL_TIM_Init
     mytimer.o(i.MyTimer_Conf) refers to mytimer.o(i.LL_TIM_DisableIT_UPDATE) for LL_TIM_DisableIT_UPDATE
@@ -154,11 +151,16 @@ Section Cross References
     entry.o(.ARM.Collect$$$$00000000) refers (Special) to entry9a.o(.ARM.Collect$$$$0000000B) for _main_init
     entry.o(.ARM.Collect$$$$00000000) refers (Special) to entry5.o(.ARM.Collect$$$$00000004) for _main_scatterload
     entry.o(.ARM.Collect$$$$00000000) refers (Special) to entry2.o(.ARM.Collect$$$$00000001) for _main_stk
+    dmul.o(.text) refers (Special) to iusefp.o(.text) for __I$use$fp
+    dmul.o(.text) refers to depilogue.o(.text) for _double_epilogue
     ddiv.o(.text) refers (Special) to iusefp.o(.text) for __I$use$fp
     ddiv.o(.text) refers to depilogue.o(.text) for _double_round
-    dflti.o(.text) refers (Special) to iusefp.o(.text) for __I$use$fp
-    dflti.o(.text) refers to depilogue.o(.text) for _double_epilogue
-    cdrcmple.o(.text) refers (Special) to iusefp.o(.text) for __I$use$fp
+    ffltui.o(.text) refers (Special) to iusefp.o(.text) for __I$use$fp
+    ffltui.o(.text) refers to fepilogue.o(.text) for _float_epilogue
+    f2d.o(.text) refers (Special) to iusefp.o(.text) for __I$use$fp
+    cdcmple.o(.text) refers (Special) to iusefp.o(.text) for __I$use$fp
+    d2f.o(.text) refers (Special) to iusefp.o(.text) for __I$use$fp
+    d2f.o(.text) refers to fepilogue.o(.text) for _float_round
     entry2.o(.ARM.Collect$$$$00000001) refers to entry2.o(.ARM.Collect$$$$00002712) for __lit__00000000
     entry2.o(.ARM.Collect$$$$00002712) refers to startup_stm32f103xb.o(STACK) for __initial_sp
     entry2.o(__vectab_stack_and_reset_area) refers to startup_stm32f103xb.o(STACK) for __initial_sp
@@ -191,9 +193,9 @@ Removing Unused input sections from the image.
     Removing chrono.o(i.Chrono_Task_10ms), (124 bytes).
     Removing chrono.o(i.LL_GPIO_IsInputPinSet), (26 bytes).
     Removing chrono.o(.data), (12 bytes).
-    Removing accelerometer.o(.rev16_text), (4 bytes).
-    Removing accelerometer.o(.revsh_text), (4 bytes).
-    Removing accelerometer.o(.rrx_text), (6 bytes).
+    Removing alimentation.o(.rev16_text), (4 bytes).
+    Removing alimentation.o(.revsh_text), (4 bytes).
+    Removing alimentation.o(.rrx_text), (6 bytes).
     Removing mytimer.o(.rev16_text), (4 bytes).
     Removing mytimer.o(.revsh_text), (4 bytes).
     Removing mytimer.o(.rrx_text), (6 bytes).
@@ -300,25 +302,29 @@ Image Symbol Table
 
     ../Src/main.c                            0x00000000   Number         0  main.o ABSOLUTE
     ../Src/system_stm32f1xx.c                0x00000000   Number         0  system_stm32f1xx.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry9a.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry11a.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry10b.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry11b.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry10a.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry9b.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry5.o ABSOLUTE
     ../clib/microlib/init/entry.s            0x00000000   Number         0  entry8b.o ABSOLUTE
     ../clib/microlib/init/entry.s            0x00000000   Number         0  entry8a.o ABSOLUTE
     ../clib/microlib/init/entry.s            0x00000000   Number         0  entry7b.o ABSOLUTE
     ../clib/microlib/init/entry.s            0x00000000   Number         0  entry7a.o ABSOLUTE
-    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry5.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry11b.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry11a.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry10b.o ABSOLUTE
     ../clib/microlib/init/entry.s            0x00000000   Number         0  entry2.o ABSOLUTE
-    ../clib/microlib/longlong.c              0x00000000   Number         0  llshl.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry10a.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry9b.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry9a.o ABSOLUTE
+    ../clib/microlib/init/entry.s            0x00000000   Number         0  entry.o ABSOLUTE
     ../clib/microlib/longlong.c              0x00000000   Number         0  llushr.o ABSOLUTE
+    ../clib/microlib/longlong.c              0x00000000   Number         0  llshl.o ABSOLUTE
     ../clib/microlib/stubs.s                 0x00000000   Number         0  iusefp.o ABSOLUTE
+    ../fplib/microlib/d2f.c                  0x00000000   Number         0  d2f.o ABSOLUTE
+    ../fplib/microlib/f2d.c                  0x00000000   Number         0  f2d.o ABSOLUTE
     ../fplib/microlib/fpdiv.c                0x00000000   Number         0  ddiv.o ABSOLUTE
     ../fplib/microlib/fpepilogue.c           0x00000000   Number         0  depilogue.o ABSOLUTE
-    ../fplib/microlib/fpflt.c                0x00000000   Number         0  dflti.o ABSOLUTE
+    ../fplib/microlib/fpepilogue.c           0x00000000   Number         0  fepilogue.o ABSOLUTE
+    ../fplib/microlib/fpflt.c                0x00000000   Number         0  ffltui.o ABSOLUTE
+    ../fplib/microlib/fpmul.c                0x00000000   Number         0  dmul.o ABSOLUTE
     ..\LLDrivers\src\stm32f1xx_ll_adc.c      0x00000000   Number         0  stm32f1xx_ll_adc.o ABSOLUTE
     ..\LLDrivers\src\stm32f1xx_ll_gpio.c     0x00000000   Number         0  stm32f1xx_ll_gpio.o ABSOLUTE
     ..\LLDrivers\src\stm32f1xx_ll_rcc.c      0x00000000   Number         0  stm32f1xx_ll_rcc.o ABSOLUTE
@@ -326,7 +332,7 @@ Image Symbol Table
     ..\LLDrivers\src\stm32f1xx_ll_utils.c    0x00000000   Number         0  stm32f1xx_ll_utils.o ABSOLUTE
     ..\MyDrivers\MyTimer.c                   0x00000000   Number         0  mytimer.o ABSOLUTE
     ..\Services\Chrono.c                     0x00000000   Number         0  chrono.o ABSOLUTE
-    ..\Services\accelerometer.c              0x00000000   Number         0  accelerometer.o ABSOLUTE
+    ..\Services\alimentation.c               0x00000000   Number         0  alimentation.o ABSOLUTE
     ..\Src\main.c                            0x00000000   Number         0  main.o ABSOLUTE
     ..\Src\system_stm32f1xx.c                0x00000000   Number         0  system_stm32f1xx.o ABSOLUTE
     ..\\LLDrivers\\src\\stm32f1xx_ll_adc.c   0x00000000   Number         0  stm32f1xx_ll_adc.o ABSOLUTE
@@ -336,8 +342,8 @@ Image Symbol Table
     ..\\LLDrivers\\src\\stm32f1xx_ll_utils.c 0x00000000   Number         0  stm32f1xx_ll_utils.o ABSOLUTE
     ..\\MyDrivers\\MyTimer.c                 0x00000000   Number         0  mytimer.o ABSOLUTE
     ..\\Services\\Chrono.c                   0x00000000   Number         0  chrono.o ABSOLUTE
-    ..\\Services\\accelerometer.c            0x00000000   Number         0  accelerometer.o ABSOLUTE
-    cdrcmple.s                               0x00000000   Number         0  cdrcmple.o ABSOLUTE
+    ..\\Services\\alimentation.c             0x00000000   Number         0  alimentation.o ABSOLUTE
+    cdcmple.s                                0x00000000   Number         0  cdcmple.o ABSOLUTE
     dc.s                                     0x00000000   Number         0  dc.o ABSOLUTE
     handlers.s                               0x00000000   Number         0  handlers.o ABSOLUTE
     init.s                                   0x00000000   Number         0  init.o ABSOLUTE
@@ -354,56 +360,51 @@ Image Symbol Table
     .ARM.Collect$$$$00002712                 0x080000fc   Section        4  entry2.o(.ARM.Collect$$$$00002712)
     __lit__00000000                          0x080000fc   Data           4  entry2.o(.ARM.Collect$$$$00002712)
     .text                                    0x08000100   Section       36  startup_stm32f103xb.o(.text)
-    .text                                    0x08000124   Section        0  ddiv.o(.text)
-    .text                                    0x08000202   Section        0  dflti.o(.text)
-    .text                                    0x08000224   Section       48  cdrcmple.o(.text)
-    .text                                    0x08000254   Section        0  depilogue.o(.text)
-    .text                                    0x08000254   Section        0  iusefp.o(.text)
-    .text                                    0x08000310   Section       36  init.o(.text)
-    .text                                    0x08000334   Section        0  llshl.o(.text)
-    .text                                    0x08000352   Section        0  llushr.o(.text)
-    i.LL_ADC_Init                            0x08000374   Section        0  stm32f1xx_ll_adc.o(i.LL_ADC_Init)
-    i.LL_ADC_IsActiveFlag_EOS                0x08000418   Section        0  accelerometer.o(i.LL_ADC_IsActiveFlag_EOS)
-    LL_ADC_IsActiveFlag_EOS                  0x08000419   Thumb Code    10  accelerometer.o(i.LL_ADC_IsActiveFlag_EOS)
-    i.LL_ADC_IsEnabled                       0x08000422   Section        0  stm32f1xx_ll_adc.o(i.LL_ADC_IsEnabled)
-    LL_ADC_IsEnabled                         0x08000423   Thumb Code    10  stm32f1xx_ll_adc.o(i.LL_ADC_IsEnabled)
-    i.LL_ADC_REG_Init                        0x0800042c   Section        0  stm32f1xx_ll_adc.o(i.LL_ADC_REG_Init)
-    i.LL_ADC_REG_SetSequencerRanks           0x08000624   Section        0  accelerometer.o(i.LL_ADC_REG_SetSequencerRanks)
-    LL_ADC_REG_SetSequencerRanks             0x08000625   Thumb Code    56  accelerometer.o(i.LL_ADC_REG_SetSequencerRanks)
-    i.LL_ADC_REG_StartConversionSWStart      0x0800065c   Section        0  accelerometer.o(i.LL_ADC_REG_StartConversionSWStart)
-    LL_ADC_REG_StartConversionSWStart        0x0800065d   Thumb Code    10  accelerometer.o(i.LL_ADC_REG_StartConversionSWStart)
-    i.LL_ADC_SetChannelSamplingTime          0x08000666   Section        0  accelerometer.o(i.LL_ADC_SetChannelSamplingTime)
-    LL_ADC_SetChannelSamplingTime            0x08000667   Thumb Code    82  accelerometer.o(i.LL_ADC_SetChannelSamplingTime)
-    i.LL_Init1msTick                         0x080006b8   Section        0  stm32f1xx_ll_utils.o(i.LL_Init1msTick)
-    i.LL_SetSystemCoreClock                  0x080006d4   Section        0  stm32f1xx_ll_utils.o(i.LL_SetSystemCoreClock)
-    i.LL_TIM_ClearFlag_UPDATE                0x080006e0   Section        0  mytimer.o(i.LL_TIM_ClearFlag_UPDATE)
-    LL_TIM_ClearFlag_UPDATE                  0x080006e1   Thumb Code     8  mytimer.o(i.LL_TIM_ClearFlag_UPDATE)
-    i.SystemClock_Config                     0x080006e8   Section        0  main.o(i.SystemClock_Config)
-    i.SystemInit                             0x080007d8   Section        0  system_stm32f1xx.o(i.SystemInit)
-    i.TIM1_UP_IRQHandler                     0x08000830   Section        0  mytimer.o(i.TIM1_UP_IRQHandler)
-    i.TIM2_IRQHandler                        0x08000848   Section        0  mytimer.o(i.TIM2_IRQHandler)
-    i.TIM3_IRQHandler                        0x08000860   Section        0  mytimer.o(i.TIM3_IRQHandler)
-    i.TIM4_IRQHandler                        0x08000878   Section        0  mytimer.o(i.TIM4_IRQHandler)
-    i.__scatterload_copy                     0x08000890   Section       14  handlers.o(i.__scatterload_copy)
-    i.__scatterload_null                     0x0800089e   Section        2  handlers.o(i.__scatterload_null)
-    i.__scatterload_zeroinit                 0x080008a0   Section       14  handlers.o(i.__scatterload_zeroinit)
-    i.accelero_angle_bon                     0x080008b0   Section        0  accelerometer.o(i.accelero_angle_bon)
-    i.accelero_get_x                         0x08000914   Section        0  accelerometer.o(i.accelero_get_x)
-    i.accelero_get_y                         0x08000948   Section        0  accelerometer.o(i.accelero_get_y)
-    i.accelero_init                          0x08000980   Section        0  accelerometer.o(i.accelero_init)
-    i.assert_failed                          0x08000a3c   Section        0  main.o(i.assert_failed)
-    i.main                                   0x08000a40   Section        0  main.o(i.main)
-    .data                                    0x20000000   Section        4  main.o(.data)
-    .data                                    0x20000008   Section       16  accelerometer.o(.data)
-    .data                                    0x20000018   Section       16  mytimer.o(.data)
-    .data                                    0x20000028   Section        4  system_stm32f1xx.o(.data)
-    STACK                                    0x20000030   Section     1024  startup_stm32f103xb.o(STACK)
+    .text                                    0x08000124   Section        0  dmul.o(.text)
+    .text                                    0x08000208   Section        0  ddiv.o(.text)
+    .text                                    0x080002e6   Section        0  ffltui.o(.text)
+    .text                                    0x080002f0   Section        0  f2d.o(.text)
+    .text                                    0x08000318   Section       48  cdcmple.o(.text)
+    .text                                    0x08000348   Section        0  d2f.o(.text)
+    .text                                    0x08000380   Section        0  fepilogue.o(.text)
+    .text                                    0x08000380   Section        0  iusefp.o(.text)
+    .text                                    0x080003ee   Section        0  depilogue.o(.text)
+    .text                                    0x080004a8   Section       36  init.o(.text)
+    .text                                    0x080004cc   Section        0  llshl.o(.text)
+    .text                                    0x080004ea   Section        0  llushr.o(.text)
+    i.LL_ADC_Init                            0x0800050c   Section        0  stm32f1xx_ll_adc.o(i.LL_ADC_Init)
+    i.LL_ADC_IsEnabled                       0x080005b0   Section        0  stm32f1xx_ll_adc.o(i.LL_ADC_IsEnabled)
+    LL_ADC_IsEnabled                         0x080005b1   Thumb Code    10  stm32f1xx_ll_adc.o(i.LL_ADC_IsEnabled)
+    i.LL_ADC_REG_Init                        0x080005bc   Section        0  stm32f1xx_ll_adc.o(i.LL_ADC_REG_Init)
+    i.LL_Init1msTick                         0x080007b4   Section        0  stm32f1xx_ll_utils.o(i.LL_Init1msTick)
+    i.LL_SetSystemCoreClock                  0x080007d0   Section        0  stm32f1xx_ll_utils.o(i.LL_SetSystemCoreClock)
+    i.LL_TIM_ClearFlag_UPDATE                0x080007dc   Section        0  mytimer.o(i.LL_TIM_ClearFlag_UPDATE)
+    LL_TIM_ClearFlag_UPDATE                  0x080007dd   Thumb Code     8  mytimer.o(i.LL_TIM_ClearFlag_UPDATE)
+    i.SystemClock_Config                     0x080007e4   Section        0  main.o(i.SystemClock_Config)
+    i.SystemInit                             0x080008d4   Section        0  system_stm32f1xx.o(i.SystemInit)
+    i.TIM1_UP_IRQHandler                     0x0800092c   Section        0  mytimer.o(i.TIM1_UP_IRQHandler)
+    i.TIM2_IRQHandler                        0x08000944   Section        0  mytimer.o(i.TIM2_IRQHandler)
+    i.TIM3_IRQHandler                        0x0800095c   Section        0  mytimer.o(i.TIM3_IRQHandler)
+    i.TIM4_IRQHandler                        0x08000974   Section        0  mytimer.o(i.TIM4_IRQHandler)
+    i.__scatterload_copy                     0x0800098c   Section       14  handlers.o(i.__scatterload_copy)
+    i.__scatterload_null                     0x0800099a   Section        2  handlers.o(i.__scatterload_null)
+    i.__scatterload_zeroinit                 0x0800099c   Section       14  handlers.o(i.__scatterload_zeroinit)
+    i.alimentation_init                      0x080009ac   Section        0  alimentation.o(i.alimentation_init)
+    i.assert_failed                          0x08000a48   Section        0  main.o(i.assert_failed)
+    i.get_battery_level                      0x08000a4c   Section        0  alimentation.o(i.get_battery_level)
+    i.is_level_enough                        0x08000b10   Section        0  alimentation.o(i.is_level_enough)
+    i.main                                   0x08000b38   Section        0  main.o(i.main)
+    .data                                    0x20000000   Section        8  main.o(.data)
+    .data                                    0x20000008   Section       12  alimentation.o(.data)
+    .data                                    0x20000014   Section       16  mytimer.o(.data)
+    .data                                    0x20000024   Section        4  system_stm32f1xx.o(.data)
+    STACK                                    0x20000028   Section     1024  startup_stm32f103xb.o(STACK)
 
     Global Symbols
 
     Symbol Name                              Value     Ov Type        Size  Object(Section)
 
-    BuildAttributes$$THM_ISAv4$P$D$K$B$S$PE$A:L22UL41UL21$X:L11$S22US41US21$IEEE1$IW$USESV6$~STKCKD$USESV7$~SHL$OSPACE$ROPI$EBA8$MICROLIB$REQ8$PRES8$EABIv2 0x00000000   Number         0  anon$$obj.o ABSOLUTE
+    BuildAttributes$$THM_ISAv4$P$D$K$B$S$PE$A:L22UL41UL21$X:L11$S22US41US21$IEEE1$IW$USESV6$~STKCKD$USESV7$~SHL$OTIME$ROPI$EBA8$MICROLIB$REQ8$PRES8$EABIv2 0x00000000   Number         0  anon$$obj.o ABSOLUTE
     __ARM_use_no_argv                        0x00000000   Number         0  main.o ABSOLUTE
     __cpp_initialize__aeabi_                  - Undefined Weak Reference
     __cxa_finalize                            - Undefined Weak Reference
@@ -471,49 +472,55 @@ Image Symbol Table
     USB_HP_CAN1_TX_IRQHandler                0x0800011b   Thumb Code     0  startup_stm32f103xb.o(.text)
     USB_LP_CAN1_RX0_IRQHandler               0x0800011b   Thumb Code     0  startup_stm32f103xb.o(.text)
     WWDG_IRQHandler                          0x0800011b   Thumb Code     0  startup_stm32f103xb.o(.text)
-    __aeabi_ddiv                             0x08000125   Thumb Code   222  ddiv.o(.text)
-    __aeabi_i2d                              0x08000203   Thumb Code    34  dflti.o(.text)
-    __aeabi_cdrcmple                         0x08000225   Thumb Code    48  cdrcmple.o(.text)
-    __I$use$fp                               0x08000255   Thumb Code     0  iusefp.o(.text)
-    _double_round                            0x08000255   Thumb Code    30  depilogue.o(.text)
-    _double_epilogue                         0x08000273   Thumb Code   156  depilogue.o(.text)
-    __scatterload                            0x08000311   Thumb Code    28  init.o(.text)
-    __scatterload_rt2                        0x08000311   Thumb Code     0  init.o(.text)
-    __aeabi_llsl                             0x08000335   Thumb Code    30  llshl.o(.text)
-    _ll_shift_l                              0x08000335   Thumb Code     0  llshl.o(.text)
-    __aeabi_llsr                             0x08000353   Thumb Code    32  llushr.o(.text)
-    _ll_ushift_r                             0x08000353   Thumb Code     0  llushr.o(.text)
-    LL_ADC_Init                              0x08000375   Thumb Code   120  stm32f1xx_ll_adc.o(i.LL_ADC_Init)
-    LL_ADC_REG_Init                          0x0800042d   Thumb Code   454  stm32f1xx_ll_adc.o(i.LL_ADC_REG_Init)
-    LL_Init1msTick                           0x080006b9   Thumb Code    28  stm32f1xx_ll_utils.o(i.LL_Init1msTick)
-    LL_SetSystemCoreClock                    0x080006d5   Thumb Code     6  stm32f1xx_ll_utils.o(i.LL_SetSystemCoreClock)
-    SystemClock_Config                       0x080006e9   Thumb Code   226  main.o(i.SystemClock_Config)
-    SystemInit                               0x080007d9   Thumb Code    70  system_stm32f1xx.o(i.SystemInit)
-    TIM1_UP_IRQHandler                       0x08000831   Thumb Code    16  mytimer.o(i.TIM1_UP_IRQHandler)
-    TIM2_IRQHandler                          0x08000849   Thumb Code    18  mytimer.o(i.TIM2_IRQHandler)
-    TIM3_IRQHandler                          0x08000861   Thumb Code    16  mytimer.o(i.TIM3_IRQHandler)
-    TIM4_IRQHandler                          0x08000879   Thumb Code    16  mytimer.o(i.TIM4_IRQHandler)
-    __scatterload_copy                       0x08000891   Thumb Code    14  handlers.o(i.__scatterload_copy)
-    __scatterload_null                       0x0800089f   Thumb Code     2  handlers.o(i.__scatterload_null)
-    __scatterload_zeroinit                   0x080008a1   Thumb Code    14  handlers.o(i.__scatterload_zeroinit)
-    accelero_angle_bon                       0x080008b1   Thumb Code    78  accelerometer.o(i.accelero_angle_bon)
-    accelero_get_x                           0x08000915   Thumb Code    46  accelerometer.o(i.accelero_get_x)
-    accelero_get_y                           0x08000949   Thumb Code    46  accelerometer.o(i.accelero_get_y)
-    accelero_init                            0x08000981   Thumb Code   170  accelerometer.o(i.accelero_init)
-    assert_failed                            0x08000a3d   Thumb Code     4  main.o(i.assert_failed)
-    main                                     0x08000a41   Thumb Code    20  main.o(i.main)
-    Region$$Table$$Base                      0x08000a58   Number         0  anon$$obj.o(Region$$Table)
-    Region$$Table$$Limit                     0x08000a78   Number         0  anon$$obj.o(Region$$Table)
-    angle_bon                                0x20000000   Data           4  main.o(.data)
-    x                                        0x20000008   Data           4  accelerometer.o(.data)
-    y                                        0x2000000c   Data           4  accelerometer.o(.data)
-    angle                                    0x20000010   Data           8  accelerometer.o(.data)
-    Ptr_ItFct_TIM1                           0x20000018   Data           4  mytimer.o(.data)
-    Ptr_ItFct_TIM2                           0x2000001c   Data           4  mytimer.o(.data)
-    Ptr_ItFct_TIM3                           0x20000020   Data           4  mytimer.o(.data)
-    Ptr_ItFct_TIM4                           0x20000024   Data           4  mytimer.o(.data)
-    SystemCoreClock                          0x20000028   Data           4  system_stm32f1xx.o(.data)
-    __initial_sp                             0x20000430   Data           0  startup_stm32f103xb.o(STACK)
+    __aeabi_dmul                             0x08000125   Thumb Code   228  dmul.o(.text)
+    __aeabi_ddiv                             0x08000209   Thumb Code   222  ddiv.o(.text)
+    __aeabi_ui2f                             0x080002e7   Thumb Code    10  ffltui.o(.text)
+    __aeabi_f2d                              0x080002f1   Thumb Code    38  f2d.o(.text)
+    __aeabi_cdcmpeq                          0x08000319   Thumb Code     0  cdcmple.o(.text)
+    __aeabi_cdcmple                          0x08000319   Thumb Code    48  cdcmple.o(.text)
+    __aeabi_d2f                              0x08000349   Thumb Code    56  d2f.o(.text)
+    __I$use$fp                               0x08000381   Thumb Code     0  iusefp.o(.text)
+    _float_round                             0x08000381   Thumb Code    18  fepilogue.o(.text)
+    _float_epilogue                          0x08000393   Thumb Code    92  fepilogue.o(.text)
+    _double_round                            0x080003ef   Thumb Code    30  depilogue.o(.text)
+    _double_epilogue                         0x0800040d   Thumb Code   156  depilogue.o(.text)
+    __scatterload                            0x080004a9   Thumb Code    28  init.o(.text)
+    __scatterload_rt2                        0x080004a9   Thumb Code     0  init.o(.text)
+    __aeabi_llsl                             0x080004cd   Thumb Code    30  llshl.o(.text)
+    _ll_shift_l                              0x080004cd   Thumb Code     0  llshl.o(.text)
+    __aeabi_llsr                             0x080004eb   Thumb Code    32  llushr.o(.text)
+    _ll_ushift_r                             0x080004eb   Thumb Code     0  llushr.o(.text)
+    LL_ADC_Init                              0x0800050d   Thumb Code   120  stm32f1xx_ll_adc.o(i.LL_ADC_Init)
+    LL_ADC_REG_Init                          0x080005bd   Thumb Code   454  stm32f1xx_ll_adc.o(i.LL_ADC_REG_Init)
+    LL_Init1msTick                           0x080007b5   Thumb Code    28  stm32f1xx_ll_utils.o(i.LL_Init1msTick)
+    LL_SetSystemCoreClock                    0x080007d1   Thumb Code     6  stm32f1xx_ll_utils.o(i.LL_SetSystemCoreClock)
+    SystemClock_Config                       0x080007e5   Thumb Code   226  main.o(i.SystemClock_Config)
+    SystemInit                               0x080008d5   Thumb Code    70  system_stm32f1xx.o(i.SystemInit)
+    TIM1_UP_IRQHandler                       0x0800092d   Thumb Code    16  mytimer.o(i.TIM1_UP_IRQHandler)
+    TIM2_IRQHandler                          0x08000945   Thumb Code    18  mytimer.o(i.TIM2_IRQHandler)
+    TIM3_IRQHandler                          0x0800095d   Thumb Code    16  mytimer.o(i.TIM3_IRQHandler)
+    TIM4_IRQHandler                          0x08000975   Thumb Code    16  mytimer.o(i.TIM4_IRQHandler)
+    __scatterload_copy                       0x0800098d   Thumb Code    14  handlers.o(i.__scatterload_copy)
+    __scatterload_null                       0x0800099b   Thumb Code     2  handlers.o(i.__scatterload_null)
+    __scatterload_zeroinit                   0x0800099d   Thumb Code    14  handlers.o(i.__scatterload_zeroinit)
+    alimentation_init                        0x080009ad   Thumb Code   146  alimentation.o(i.alimentation_init)
+    assert_failed                            0x08000a49   Thumb Code     4  main.o(i.assert_failed)
+    get_battery_level                        0x08000a4d   Thumb Code   166  alimentation.o(i.get_battery_level)
+    is_level_enough                          0x08000b11   Thumb Code    32  alimentation.o(i.is_level_enough)
+    main                                     0x08000b39   Thumb Code    28  main.o(i.main)
+    Region$$Table$$Base                      0x08000b5c   Number         0  anon$$obj.o(Region$$Table)
+    Region$$Table$$Limit                     0x08000b7c   Number         0  anon$$obj.o(Region$$Table)
+    level                                    0x20000000   Data           4  main.o(.data)
+    level_enough                             0x20000004   Data           4  main.o(.data)
+    u2                                       0x20000008   Data           4  alimentation.o(.data)
+    niv_batterie                             0x2000000c   Data           4  alimentation.o(.data)
+    battery_level                            0x20000010   Data           4  alimentation.o(.data)
+    Ptr_ItFct_TIM1                           0x20000014   Data           4  mytimer.o(.data)
+    Ptr_ItFct_TIM2                           0x20000018   Data           4  mytimer.o(.data)
+    Ptr_ItFct_TIM3                           0x2000001c   Data           4  mytimer.o(.data)
+    Ptr_ItFct_TIM4                           0x20000020   Data           4  mytimer.o(.data)
+    SystemCoreClock                          0x20000024   Data           4  system_stm32f1xx.o(.data)
+    __initial_sp                             0x20000428   Data           0  startup_stm32f103xb.o(STACK)
 
 
 
@@ -523,73 +530,71 @@ Memory Map of the image
 
   Image Entry point : 0x080000ed
 
-  Load Region LR_IROM1 (Base: 0x08000000, Size: 0x00000aa4, Max: 0x00020000, ABSOLUTE)
+  Load Region LR_IROM1 (Base: 0x08000000, Size: 0x00000ba4, Max: 0x00020000, ABSOLUTE)
 
-    Execution Region ER_IROM1 (Exec base: 0x08000000, Load base: 0x08000000, Size: 0x00000a78, Max: 0x00020000, ABSOLUTE)
+    Execution Region ER_IROM1 (Exec base: 0x08000000, Load base: 0x08000000, Size: 0x00000b7c, Max: 0x00020000, ABSOLUTE)
 
     Exec Addr    Load Addr    Size         Type   Attr      Idx    E Section Name        Object
 
-    0x08000000   0x08000000   0x000000ec   Data   RO          873    RESET               startup_stm32f103xb.o
-    0x080000ec   0x080000ec   0x00000000   Code   RO          878  * .ARM.Collect$$$$00000000  mc_w.l(entry.o)
-    0x080000ec   0x080000ec   0x00000004   Code   RO          887    .ARM.Collect$$$$00000001  mc_w.l(entry2.o)
-    0x080000f0   0x080000f0   0x00000004   Code   RO          890    .ARM.Collect$$$$00000004  mc_w.l(entry5.o)
-    0x080000f4   0x080000f4   0x00000000   Code   RO          892    .ARM.Collect$$$$00000008  mc_w.l(entry7b.o)
-    0x080000f4   0x080000f4   0x00000000   Code   RO          894    .ARM.Collect$$$$0000000A  mc_w.l(entry8b.o)
-    0x080000f4   0x080000f4   0x00000008   Code   RO          895    .ARM.Collect$$$$0000000B  mc_w.l(entry9a.o)
-    0x080000fc   0x080000fc   0x00000000   Code   RO          897    .ARM.Collect$$$$0000000D  mc_w.l(entry10a.o)
-    0x080000fc   0x080000fc   0x00000000   Code   RO          899    .ARM.Collect$$$$0000000F  mc_w.l(entry11a.o)
-    0x080000fc   0x080000fc   0x00000004   Code   RO          888    .ARM.Collect$$$$00002712  mc_w.l(entry2.o)
-    0x08000100   0x08000100   0x00000024   Code   RO          874    .text               startup_stm32f103xb.o
-    0x08000124   0x08000124   0x000000de   Code   RO          881    .text               mf_w.l(ddiv.o)
-    0x08000202   0x08000202   0x00000022   Code   RO          883    .text               mf_w.l(dflti.o)
-    0x08000224   0x08000224   0x00000030   Code   RO          885    .text               mf_w.l(cdrcmple.o)
-    0x08000254   0x08000254   0x00000000   Code   RO          901    .text               mc_w.l(iusefp.o)
-    0x08000254   0x08000254   0x000000ba   Code   RO          902    .text               mf_w.l(depilogue.o)
-    0x0800030e   0x0800030e   0x00000002   PAD
-    0x08000310   0x08000310   0x00000024   Code   RO          904    .text               mc_w.l(init.o)
-    0x08000334   0x08000334   0x0000001e   Code   RO          906    .text               mc_w.l(llshl.o)
-    0x08000352   0x08000352   0x00000020   Code   RO          908    .text               mc_w.l(llushr.o)
-    0x08000372   0x08000372   0x00000002   PAD
-    0x08000374   0x08000374   0x000000a4   Code   RO          757    i.LL_ADC_Init       stm32f1xx_ll_adc.o
-    0x08000418   0x08000418   0x0000000a   Code   RO          170    i.LL_ADC_IsActiveFlag_EOS  accelerometer.o
-    0x08000422   0x08000422   0x0000000a   Code   RO          758    i.LL_ADC_IsEnabled  stm32f1xx_ll_adc.o
-    0x0800042c   0x0800042c   0x000001f8   Code   RO          759    i.LL_ADC_REG_Init   stm32f1xx_ll_adc.o
-    0x08000624   0x08000624   0x00000038   Code   RO          171    i.LL_ADC_REG_SetSequencerRanks  accelerometer.o
-    0x0800065c   0x0800065c   0x0000000a   Code   RO          172    i.LL_ADC_REG_StartConversionSWStart  accelerometer.o
-    0x08000666   0x08000666   0x00000052   Code   RO          173    i.LL_ADC_SetChannelSamplingTime  accelerometer.o
-    0x080006b8   0x080006b8   0x0000001c   Code   RO          443    i.LL_Init1msTick    stm32f1xx_ll_utils.o
-    0x080006d4   0x080006d4   0x0000000c   Code   RO          450    i.LL_SetSystemCoreClock  stm32f1xx_ll_utils.o
-    0x080006e0   0x080006e0   0x00000008   Code   RO          252    i.LL_TIM_ClearFlag_UPDATE  mytimer.o
-    0x080006e8   0x080006e8   0x000000f0   Code   RO            4    i.SystemClock_Config  main.o
-    0x080007d8   0x080007d8   0x00000058   Code   RO          838    i.SystemInit        system_stm32f1xx.o
-    0x08000830   0x08000830   0x00000018   Code   RO          261    i.TIM1_UP_IRQHandler  mytimer.o
-    0x08000848   0x08000848   0x00000018   Code   RO          262    i.TIM2_IRQHandler   mytimer.o
-    0x08000860   0x08000860   0x00000018   Code   RO          263    i.TIM3_IRQHandler   mytimer.o
-    0x08000878   0x08000878   0x00000018   Code   RO          264    i.TIM4_IRQHandler   mytimer.o
-    0x08000890   0x08000890   0x0000000e   Code   RO          912    i.__scatterload_copy  mc_w.l(handlers.o)
-    0x0800089e   0x0800089e   0x00000002   Code   RO          913    i.__scatterload_null  mc_w.l(handlers.o)
-    0x080008a0   0x080008a0   0x0000000e   Code   RO          914    i.__scatterload_zeroinit  mc_w.l(handlers.o)
-    0x080008ae   0x080008ae   0x00000002   PAD
-    0x080008b0   0x080008b0   0x00000064   Code   RO          174    i.accelero_angle_bon  accelerometer.o
-    0x08000914   0x08000914   0x00000034   Code   RO          175    i.accelero_get_x    accelerometer.o
-    0x08000948   0x08000948   0x00000038   Code   RO          176    i.accelero_get_y    accelerometer.o
-    0x08000980   0x08000980   0x000000bc   Code   RO          177    i.accelero_init     accelerometer.o
-    0x08000a3c   0x08000a3c   0x00000004   Code   RO            5    i.assert_failed     main.o
-    0x08000a40   0x08000a40   0x00000018   Code   RO            6    i.main              main.o
-    0x08000a58   0x08000a58   0x00000020   Data   RO          910    Region$$Table       anon$$obj.o
+    0x08000000   0x08000000   0x000000ec   Data   RO          853    RESET               startup_stm32f103xb.o
+    0x080000ec   0x080000ec   0x00000000   Code   RO          858  * .ARM.Collect$$$$00000000  mc_w.l(entry.o)
+    0x080000ec   0x080000ec   0x00000004   Code   RO          873    .ARM.Collect$$$$00000001  mc_w.l(entry2.o)
+    0x080000f0   0x080000f0   0x00000004   Code   RO          876    .ARM.Collect$$$$00000004  mc_w.l(entry5.o)
+    0x080000f4   0x080000f4   0x00000000   Code   RO          878    .ARM.Collect$$$$00000008  mc_w.l(entry7b.o)
+    0x080000f4   0x080000f4   0x00000000   Code   RO          880    .ARM.Collect$$$$0000000A  mc_w.l(entry8b.o)
+    0x080000f4   0x080000f4   0x00000008   Code   RO          881    .ARM.Collect$$$$0000000B  mc_w.l(entry9a.o)
+    0x080000fc   0x080000fc   0x00000000   Code   RO          883    .ARM.Collect$$$$0000000D  mc_w.l(entry10a.o)
+    0x080000fc   0x080000fc   0x00000000   Code   RO          885    .ARM.Collect$$$$0000000F  mc_w.l(entry11a.o)
+    0x080000fc   0x080000fc   0x00000004   Code   RO          874    .ARM.Collect$$$$00002712  mc_w.l(entry2.o)
+    0x08000100   0x08000100   0x00000024   Code   RO          854    .text               startup_stm32f103xb.o
+    0x08000124   0x08000124   0x000000e4   Code   RO          861    .text               mf_w.l(dmul.o)
+    0x08000208   0x08000208   0x000000de   Code   RO          863    .text               mf_w.l(ddiv.o)
+    0x080002e6   0x080002e6   0x0000000a   Code   RO          865    .text               mf_w.l(ffltui.o)
+    0x080002f0   0x080002f0   0x00000026   Code   RO          867    .text               mf_w.l(f2d.o)
+    0x08000316   0x08000316   0x00000002   PAD
+    0x08000318   0x08000318   0x00000030   Code   RO          869    .text               mf_w.l(cdcmple.o)
+    0x08000348   0x08000348   0x00000038   Code   RO          871    .text               mf_w.l(d2f.o)
+    0x08000380   0x08000380   0x00000000   Code   RO          887    .text               mc_w.l(iusefp.o)
+    0x08000380   0x08000380   0x0000006e   Code   RO          888    .text               mf_w.l(fepilogue.o)
+    0x080003ee   0x080003ee   0x000000ba   Code   RO          890    .text               mf_w.l(depilogue.o)
+    0x080004a8   0x080004a8   0x00000024   Code   RO          892    .text               mc_w.l(init.o)
+    0x080004cc   0x080004cc   0x0000001e   Code   RO          894    .text               mc_w.l(llshl.o)
+    0x080004ea   0x080004ea   0x00000020   Code   RO          896    .text               mc_w.l(llushr.o)
+    0x0800050a   0x0800050a   0x00000002   PAD
+    0x0800050c   0x0800050c   0x000000a4   Code   RO          737    i.LL_ADC_Init       stm32f1xx_ll_adc.o
+    0x080005b0   0x080005b0   0x0000000a   Code   RO          738    i.LL_ADC_IsEnabled  stm32f1xx_ll_adc.o
+    0x080005ba   0x080005ba   0x00000002   PAD
+    0x080005bc   0x080005bc   0x000001f8   Code   RO          739    i.LL_ADC_REG_Init   stm32f1xx_ll_adc.o
+    0x080007b4   0x080007b4   0x0000001c   Code   RO          423    i.LL_Init1msTick    stm32f1xx_ll_utils.o
+    0x080007d0   0x080007d0   0x0000000c   Code   RO          430    i.LL_SetSystemCoreClock  stm32f1xx_ll_utils.o
+    0x080007dc   0x080007dc   0x00000008   Code   RO          232    i.LL_TIM_ClearFlag_UPDATE  mytimer.o
+    0x080007e4   0x080007e4   0x000000f0   Code   RO            4    i.SystemClock_Config  main.o
+    0x080008d4   0x080008d4   0x00000058   Code   RO          818    i.SystemInit        system_stm32f1xx.o
+    0x0800092c   0x0800092c   0x00000018   Code   RO          241    i.TIM1_UP_IRQHandler  mytimer.o
+    0x08000944   0x08000944   0x00000018   Code   RO          242    i.TIM2_IRQHandler   mytimer.o
+    0x0800095c   0x0800095c   0x00000018   Code   RO          243    i.TIM3_IRQHandler   mytimer.o
+    0x08000974   0x08000974   0x00000018   Code   RO          244    i.TIM4_IRQHandler   mytimer.o
+    0x0800098c   0x0800098c   0x0000000e   Code   RO          900    i.__scatterload_copy  mc_w.l(handlers.o)
+    0x0800099a   0x0800099a   0x00000002   Code   RO          901    i.__scatterload_null  mc_w.l(handlers.o)
+    0x0800099c   0x0800099c   0x0000000e   Code   RO          902    i.__scatterload_zeroinit  mc_w.l(handlers.o)
+    0x080009aa   0x080009aa   0x00000002   PAD
+    0x080009ac   0x080009ac   0x0000009c   Code   RO          183    i.alimentation_init  alimentation.o
+    0x08000a48   0x08000a48   0x00000004   Code   RO            5    i.assert_failed     main.o
+    0x08000a4c   0x08000a4c   0x000000c4   Code   RO          184    i.get_battery_level  alimentation.o
+    0x08000b10   0x08000b10   0x00000028   Code   RO          185    i.is_level_enough   alimentation.o
+    0x08000b38   0x08000b38   0x00000024   Code   RO            6    i.main              main.o
+    0x08000b5c   0x08000b5c   0x00000020   Data   RO          898    Region$$Table       anon$$obj.o
 
 
-    Execution Region RW_IRAM1 (Exec base: 0x20000000, Load base: 0x08000a78, Size: 0x00000430, Max: 0x00005000, ABSOLUTE)
+    Execution Region RW_IRAM1 (Exec base: 0x20000000, Load base: 0x08000b7c, Size: 0x00000428, Max: 0x00005000, ABSOLUTE)
 
     Exec Addr    Load Addr    Size         Type   Attr      Idx    E Section Name        Object
 
-    0x20000000   0x08000a78   0x00000004   Data   RW            7    .data               main.o
-    0x20000004   0x08000a7c   0x00000004   PAD
-    0x20000008   0x08000a80   0x00000010   Data   RW          178    .data               accelerometer.o
-    0x20000018   0x08000a90   0x00000010   Data   RW          266    .data               mytimer.o
-    0x20000028   0x08000aa0   0x00000004   Data   RW          840    .data               system_stm32f1xx.o
-    0x2000002c   0x08000aa4   0x00000004   PAD
-    0x20000030        -       0x00000400   Zero   RW          871    STACK               startup_stm32f103xb.o
+    0x20000000   0x08000b7c   0x00000008   Data   RW            7    .data               main.o
+    0x20000008   0x08000b84   0x0000000c   Data   RW          186    .data               alimentation.o
+    0x20000014   0x08000b90   0x00000010   Data   RW          246    .data               mytimer.o
+    0x20000024   0x08000ba0   0x00000004   Data   RW          820    .data               system_stm32f1xx.o
+    0x20000028        -       0x00000400   Zero   RW          851    STACK               startup_stm32f103xb.o
 
 
 ==============================================================================
@@ -599,8 +604,8 @@ Image component sizes
 
       Code (inc. data)   RO Data    RW Data    ZI Data      Debug   Object Name
 
-       554         56          0         16          0      45455   accelerometer.o
-       268         18          0          4          0     356424   main.o
+       392         48          0         12          0      35394   alimentation.o
+       280         22          0          8          0     364305   main.o
        104         30          0         16          0      27113   mytimer.o
         36          8        236          0       1024        772   startup_stm32f103xb.o
        678         94          0          0          0      38000   stm32f1xx_ll_adc.o
@@ -608,9 +613,9 @@ Image component sizes
         88         18          0          4          0       1147   system_stm32f1xx.o
 
     ----------------------------------------------------------------------
-      1768        230        268         44       1028     470984   Object Totals
+      1620        226        268         40       1024     468804   Object Totals
          0          0         32          0          0          0   (incl. Generated)
-         0          0          0          4          4          0   (incl. Padding)
+         2          0          0          0          0          0   (incl. Padding)
 
     ----------------------------------------------------------------------
 
@@ -629,13 +634,17 @@ Image component sizes
          0          0          0          0          0          0   iusefp.o
         30          0          0          0          0         68   llshl.o
         32          0          0          0          0         68   llushr.o
-        48          0          0          0          0         68   cdrcmple.o
+        48          0          0          0          0         68   cdcmple.o
+        56          0          0          0          0         88   d2f.o
        222          0          0          0          0        100   ddiv.o
        186          0          0          0          0        176   depilogue.o
-        34          0          0          0          0         76   dflti.o
+       228          0          0          0          0         96   dmul.o
+        38          0          0          0          0         68   f2d.o
+       110          0          0          0          0        168   fepilogue.o
+        10          0          0          0          0         68   ffltui.o
 
     ----------------------------------------------------------------------
-       644         16          0          0          0        624   Library Totals
+      1052         16          0          0          0       1036   Library Totals
          6          0          0          0          0          0   (incl. Padding)
 
     ----------------------------------------------------------------------
@@ -643,10 +652,10 @@ Image component sizes
       Code (inc. data)   RO Data    RW Data    ZI Data      Debug   Library Name
 
        148         16          0          0          0        204   mc_w.l
-       490          0          0          0          0        420   mf_w.l
+       898          0          0          0          0        832   mf_w.l
 
     ----------------------------------------------------------------------
-       644         16          0          0          0        624   Library Totals
+      1052         16          0          0          0       1036   Library Totals
 
     ----------------------------------------------------------------------
 
@@ -655,15 +664,15 @@ Image component sizes
 
       Code (inc. data)   RO Data    RW Data    ZI Data      Debug   
 
-      2412        246        268         44       1028     470408   Grand Totals
-      2412        246        268         44       1028     470408   ELF Image Totals
-      2412        246        268         44          0          0   ROM Totals
+      2672        242        268         40       1024     468744   Grand Totals
+      2672        242        268         40       1024     468744   ELF Image Totals
+      2672        242        268         40          0          0   ROM Totals
 
 ==============================================================================
 
-    Total RO  Size (Code + RO Data)                 2680 (   2.62kB)
-    Total RW  Size (RW Data + ZI Data)              1072 (   1.05kB)
-    Total ROM Size (Code + RO Data + RW Data)       2724 (   2.66kB)
+    Total RO  Size (Code + RO Data)                 2940 (   2.87kB)
+    Total RW  Size (RW Data + ZI Data)              1064 (   1.04kB)
+    Total ROM Size (Code + RO Data + RW Data)       2980 (   2.91kB)
 
 ==============================================================================
 
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/Project_Simulateur.dep b/keil_project/MDK-ARM/NUCLEO-F103RB/Project_Simulateur.dep
index 1a242bd..ab1e12f 100644
--- a/keil_project/MDK-ARM/NUCLEO-F103RB/Project_Simulateur.dep
+++ b/keil_project/MDK-ARM/NUCLEO-F103RB/Project_Simulateur.dep
@@ -1,6 +1,6 @@
 Dependencies for Project 'Project', Target 'Simulateur': (DO NOT MODIFY !)
 CompilerVersion: 5060750::V5.06 update 6 (build 750)::ARMCC
-F (../Src/main.c)(0x5FA8517B)(-c --cpu Cortex-M3 -D__EVAL -D__MICROLIB -g -O0 --apcs=interwork --split_sections -I ..\Inc -I ..\LLDrivers\inc -I ..\Services -I ..\MyDrivers -I ..\MDK-ARM --C99-I.\RTE\_Simulateur-IC:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include-IC:\Users\momof\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.3.0\Device\Include-D__UVISION_VERSION="529" -D_RTE_ -DSTM32F10X_MD -DSTM32F103xB -DUSE_FULL_LL_DRIVER -DHSE_VALUE="8000000U" -DUSE_FULL_ASSERT-o nucleo-f103rb\main.o --omf_browse nucleo-f103rb\main.crf --depend nucleo-f103rb\main.d)
+F (../Src/main.c)(0x5FABEEFA)(-c --cpu Cortex-M3 -D__EVAL -D__MICROLIB -g -O0 --apcs=interwork --split_sections -I ..\Inc -I ..\LLDrivers\inc -I ..\Services -I ..\MyDrivers -I ..\MDK-ARM --C99-I.\RTE\_Simulateur-IC:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include-IC:\Users\momof\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.3.0\Device\Include-D__UVISION_VERSION="529" -D_RTE_ -DSTM32F10X_MD -DSTM32F103xB -DUSE_FULL_LL_DRIVER -DHSE_VALUE="8000000U" -DUSE_FULL_ASSERT-o nucleo-f103rb\main.o --omf_browse nucleo-f103rb\main.crf --depend nucleo-f103rb\main.d)
 I (..\LLDrivers\inc\stm32f1xx_ll_rcc.h)(0x5F8402DF)
 I (..\Inc\stm32f1xx.h)(0x5F8402DF)
 I (..\Inc\stm32f103xb.h)(0x5F8402DF)
@@ -13,7 +13,11 @@ I (..\Inc\system_stm32f1xx.h)(0x5F8402DF)
 I (..\LLDrivers\inc\stm32f1xx_ll_utils.h)(0x5F8402E0)
 I (..\LLDrivers\inc\stm32f1xx_ll_system.h)(0x5F8402E0)
 I (..\Services\Chrono.h)(0x5F8402E0)
-I (..\Services\accelerometer.h)(0x5FA83AC2)
+I (..\Services\alimentation.h)(0x5FABF760)
+I (..\LLDrivers\inc\stm32f1xx_ll_adc.h)(0x5F8402DF)
+I (..\LLDrivers\inc\stm32f1xx_ll_bus.h)(0x5F8402DF)
+I (..\LLDrivers\inc\stm32f1xx_ll_gpio.h)(0x5F8402DF)
+I (C:\Keil_v5\ARM\ARMCC\include\math.h)(0x5D9B3482)
 F (..\Services\Chrono.c)(0x5F8402E0)(-c --cpu Cortex-M3 -D__EVAL -D__MICROLIB -g -O0 --apcs=interwork --split_sections -I ..\Inc -I ..\LLDrivers\inc -I ..\Services -I ..\MyDrivers -I ..\MDK-ARM --C99-I.\RTE\_Simulateur-IC:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include-IC:\Users\momof\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.3.0\Device\Include-D__UVISION_VERSION="529" -D_RTE_ -DSTM32F10X_MD -DSTM32F103xB -DUSE_FULL_LL_DRIVER -DHSE_VALUE="8000000U" -DUSE_FULL_ASSERT-o nucleo-f103rb\chrono.o --omf_browse nucleo-f103rb\chrono.crf --depend nucleo-f103rb\chrono.d)
 I (..\Services\Chrono.h)(0x5F8402E0)
 I (..\Inc\stm32f103xb.h)(0x5F8402DF)
@@ -27,9 +31,8 @@ I (..\MyDrivers\MyTimer.h)(0x5F8402E0)
 I (..\LLDrivers\inc\stm32f1xx_ll_gpio.h)(0x5F8402DF)
 I (..\Inc\stm32f1xx.h)(0x5F8402DF)
 I (..\LLDrivers\inc\stm32f1xx_ll_bus.h)(0x5F8402DF)
-F (..\Services\accelerometer.c)(0x5FA99B30)(-c --cpu Cortex-M3 -D__EVAL -D__MICROLIB -g -O0 --apcs=interwork --split_sections -I ..\Inc -I ..\LLDrivers\inc -I ..\Services -I ..\MyDrivers -I ..\MDK-ARM --C99-I.\RTE\_Simulateur-IC:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include-IC:\Users\momof\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.3.0\Device\Include-D__UVISION_VERSION="529" -D_RTE_ -DSTM32F10X_MD -DSTM32F103xB -DUSE_FULL_LL_DRIVER -DHSE_VALUE="8000000U" -DUSE_FULL_ASSERT-o nucleo-f103rb\accelerometer.o --omf_browse nucleo-f103rb\accelerometer.crf --depend nucleo-f103rb\accelerometer.d)
-I (..\LLDrivers\inc\stm32f1xx_ll_adc.h)(0x5F8402DF)
-I (..\Inc\stm32f1xx.h)(0x5F8402DF)
+F (..\Services\alimentation.c)(0x5FABF957)(-c --cpu Cortex-M3 -D__EVAL -D__MICROLIB -g -O0 --apcs=interwork --split_sections -I ..\Inc -I ..\LLDrivers\inc -I ..\Services -I ..\MyDrivers -I ..\MDK-ARM --C99-I.\RTE\_Simulateur-IC:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include-IC:\Users\momof\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.3.0\Device\Include-D__UVISION_VERSION="529" -D_RTE_ -DSTM32F10X_MD -DSTM32F103xB -DUSE_FULL_LL_DRIVER -DHSE_VALUE="8000000U" -DUSE_FULL_ASSERT-o nucleo-f103rb\alimentation.o --omf_browse nucleo-f103rb\alimentation.crf --depend nucleo-f103rb\alimentation.d)
+I (..\Services\alimentation.h)(0x5FABF760)
 I (..\Inc\stm32f103xb.h)(0x5F8402DF)
 I (C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\core_cm3.h)(0x5D25F326)
 I (C:\Keil_v5\ARM\ARMCC\include\stdint.h)(0x5D9B3488)
@@ -37,10 +40,13 @@ I (C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cms
 I (C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cmsis_compiler.h)(0x5D25F326)
 I (C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cmsis_armcc.h)(0x5D25F326)
 I (..\Inc\system_stm32f1xx.h)(0x5F8402DF)
+I (..\LLDrivers\inc\stm32f1xx_ll_adc.h)(0x5F8402DF)
+I (..\Inc\stm32f1xx.h)(0x5F8402DF)
 I (..\LLDrivers\inc\stm32f1xx_ll_bus.h)(0x5F8402DF)
 I (..\LLDrivers\inc\stm32f1xx_ll_rcc.h)(0x5F8402DF)
 I (..\LLDrivers\inc\stm32f1xx_ll_gpio.h)(0x5F8402DF)
 I (C:\Keil_v5\ARM\ARMCC\include\math.h)(0x5D9B3482)
+F (..\Services\alimentation.h)(0x5FABF760)()
 F (..\MyDrivers\MyTimer.c)(0x5F8402E0)(-c --cpu Cortex-M3 -D__EVAL -D__MICROLIB -g -O0 --apcs=interwork --split_sections -I ..\Inc -I ..\LLDrivers\inc -I ..\Services -I ..\MyDrivers -I ..\MDK-ARM --C99-I.\RTE\_Simulateur-IC:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include-IC:\Users\momof\AppData\Local\Arm\Packs\Keil\STM32F1xx_DFP\2.3.0\Device\Include-D__UVISION_VERSION="529" -D_RTE_ -DSTM32F10X_MD -DSTM32F103xB -DUSE_FULL_LL_DRIVER -DHSE_VALUE="8000000U" -DUSE_FULL_ASSERT-o nucleo-f103rb\mytimer.o --omf_browse nucleo-f103rb\mytimer.crf --depend nucleo-f103rb\mytimer.d)
 I (..\MyDrivers\MyTimer.h)(0x5F8402E0)
 I (..\Inc\stm32f103xb.h)(0x5F8402DF)
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/alimentation.crf b/keil_project/MDK-ARM/NUCLEO-F103RB/alimentation.crf
new file mode 100644
index 0000000..c851860
Binary files /dev/null and b/keil_project/MDK-ARM/NUCLEO-F103RB/alimentation.crf differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/alimentation.d b/keil_project/MDK-ARM/NUCLEO-F103RB/alimentation.d
new file mode 100644
index 0000000..7da2a56
--- /dev/null
+++ b/keil_project/MDK-ARM/NUCLEO-F103RB/alimentation.d
@@ -0,0 +1,15 @@
+nucleo-f103rb\alimentation.o: ..\Services\alimentation.c
+nucleo-f103rb\alimentation.o: ..\Services\alimentation.h
+nucleo-f103rb\alimentation.o: ..\Inc\stm32f103xb.h
+nucleo-f103rb\alimentation.o: C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\core_cm3.h
+nucleo-f103rb\alimentation.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\stdint.h
+nucleo-f103rb\alimentation.o: C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cmsis_version.h
+nucleo-f103rb\alimentation.o: C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cmsis_compiler.h
+nucleo-f103rb\alimentation.o: C:\Users\momof\AppData\Local\Arm\Packs\ARM\CMSIS\5.6.0\CMSIS\Core\Include\cmsis_armcc.h
+nucleo-f103rb\alimentation.o: ..\Inc\system_stm32f1xx.h
+nucleo-f103rb\alimentation.o: ..\LLDrivers\inc\stm32f1xx_ll_adc.h
+nucleo-f103rb\alimentation.o: ..\Inc\stm32f1xx.h
+nucleo-f103rb\alimentation.o: ..\LLDrivers\inc\stm32f1xx_ll_bus.h
+nucleo-f103rb\alimentation.o: ..\LLDrivers\inc\stm32f1xx_ll_rcc.h
+nucleo-f103rb\alimentation.o: ..\LLDrivers\inc\stm32f1xx_ll_gpio.h
+nucleo-f103rb\alimentation.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\math.h
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/alimentation.o b/keil_project/MDK-ARM/NUCLEO-F103RB/alimentation.o
new file mode 100644
index 0000000..4a62509
Binary files /dev/null and b/keil_project/MDK-ARM/NUCLEO-F103RB/alimentation.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/chrono.o b/keil_project/MDK-ARM/NUCLEO-F103RB/chrono.o
index 96d9dc4..9f6bdd4 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/chrono.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/chrono.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/main.crf b/keil_project/MDK-ARM/NUCLEO-F103RB/main.crf
index 53bccd4..78d33e8 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/main.crf and b/keil_project/MDK-ARM/NUCLEO-F103RB/main.crf differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/main.d b/keil_project/MDK-ARM/NUCLEO-F103RB/main.d
index 5d07c5e..a354ede 100644
--- a/keil_project/MDK-ARM/NUCLEO-F103RB/main.d
+++ b/keil_project/MDK-ARM/NUCLEO-F103RB/main.d
@@ -11,4 +11,8 @@ nucleo-f103rb\main.o: ..\Inc\system_stm32f1xx.h
 nucleo-f103rb\main.o: ..\LLDrivers\inc\stm32f1xx_ll_utils.h
 nucleo-f103rb\main.o: ..\LLDrivers\inc\stm32f1xx_ll_system.h
 nucleo-f103rb\main.o: ..\Services\Chrono.h
-nucleo-f103rb\main.o: ..\Services\accelerometer.h
+nucleo-f103rb\main.o: ..\Services\alimentation.h
+nucleo-f103rb\main.o: ..\LLDrivers\inc\stm32f1xx_ll_adc.h
+nucleo-f103rb\main.o: ..\LLDrivers\inc\stm32f1xx_ll_bus.h
+nucleo-f103rb\main.o: ..\LLDrivers\inc\stm32f1xx_ll_gpio.h
+nucleo-f103rb\main.o: C:\Keil_v5\ARM\ARMCC\Bin\..\include\math.h
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/main.o b/keil_project/MDK-ARM/NUCLEO-F103RB/main.o
index a381b91..5aceb3c 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/main.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/main.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/mytimer.o b/keil_project/MDK-ARM/NUCLEO-F103RB/mytimer.o
index a67787a..f311947 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/mytimer.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/mytimer.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_adc.o b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_adc.o
index 1341d85..8fe9a80 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_adc.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_adc.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_gpio.o b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_gpio.o
index 3d189b6..6fdbfcc 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_gpio.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_gpio.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_rcc.o b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_rcc.o
index ef2ea4c..ed144a6 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_rcc.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_rcc.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_tim.o b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_tim.o
index 7fae8c5..3cf395a 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_tim.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_tim.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_utils.o b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_utils.o
index e90b609..5ee5967 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_utils.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/stm32f1xx_ll_utils.o differ
diff --git a/keil_project/MDK-ARM/NUCLEO-F103RB/system_stm32f1xx.o b/keil_project/MDK-ARM/NUCLEO-F103RB/system_stm32f1xx.o
index e120bdc..6760bdc 100644
Binary files a/keil_project/MDK-ARM/NUCLEO-F103RB/system_stm32f1xx.o and b/keil_project/MDK-ARM/NUCLEO-F103RB/system_stm32f1xx.o differ
diff --git a/keil_project/MDK-ARM/Project.uvguix.momof b/keil_project/MDK-ARM/Project.uvguix.momof
index f01ba5a..9be00a3 100644
--- a/keil_project/MDK-ARM/Project.uvguix.momof
+++ b/keil_project/MDK-ARM/Project.uvguix.momof
@@ -123,8 +123,8 @@
     <MDIClientArea>
       <RegID>0</RegID>
       <MDITabState>
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     <ViewEx>
@@ -1835,7 +1835,7 @@
         <Name>Build</Name>
         <Buttons>
           <Len>998</Len>
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@@ -2040,7 +2040,7 @@
         <IsActivated>0</IsActivated>
         <MRUWidth>32767</MRUWidth>
         <PinState>0</PinState>
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+        <RecentFrameAlignment>8192</RecentFrameAlignment>
         <RecentRowIndex>0</RecentRowIndex>
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           <Len>16</Len>
@@ -2320,7 +2320,7 @@
         <IsActivated>0</IsActivated>
         <MRUWidth>32767</MRUWidth>
         <PinState>0</PinState>
-        <RecentFrameAlignment>4096</RecentFrameAlignment>
+        <RecentFrameAlignment>8192</RecentFrameAlignment>
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
@@ -2400,7 +2400,7 @@
         <IsActivated>0</IsActivated>
         <MRUWidth>32767</MRUWidth>
         <PinState>0</PinState>
-        <RecentFrameAlignment>4096</RecentFrameAlignment>
+        <RecentFrameAlignment>8192</RecentFrameAlignment>
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
@@ -2420,7 +2420,7 @@
         <IsActivated>0</IsActivated>
         <MRUWidth>32767</MRUWidth>
         <PinState>0</PinState>
-        <RecentFrameAlignment>4096</RecentFrameAlignment>
+        <RecentFrameAlignment>8192</RecentFrameAlignment>
         <RecentRowIndex>0</RecentRowIndex>
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           <Len>16</Len>
@@ -2440,7 +2440,7 @@
         <IsActivated>0</IsActivated>
         <MRUWidth>32767</MRUWidth>
         <PinState>0</PinState>
-        <RecentFrameAlignment>4096</RecentFrameAlignment>
+        <RecentFrameAlignment>8192</RecentFrameAlignment>
         <RecentRowIndex>0</RecentRowIndex>
         <RectRecentDocked>
           <Len>16</Len>
@@ -2460,7 +2460,7 @@
         <IsActivated>0</IsActivated>
         <MRUWidth>32767</MRUWidth>
         <PinState>0</PinState>
-        <RecentFrameAlignment>4096</RecentFrameAlignment>
+        <RecentFrameAlignment>8192</RecentFrameAlignment>
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           <Len>16</Len>
@@ -3040,7 +3040,7 @@
         <IsActivated>0</IsActivated>
         <MRUWidth>32767</MRUWidth>
         <PinState>0</PinState>
-        <RecentFrameAlignment>4096</RecentFrameAlignment>
+        <RecentFrameAlignment>8192</RecentFrameAlignment>
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           <Len>16</Len>
@@ -3560,7 +3560,7 @@
         <Name>File</Name>
         <Buttons>
           <Len>2727</Len>
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@@ -3616,7 +3616,7 @@
     <ActiveMDIGroup>0</ActiveMDIGroup>
     <MDIGroup>
       <Size>100</Size>
-      <ActiveTab>1</ActiveTab>
+      <ActiveTab>3</ActiveTab>
       <Doc>
         <Name>startup_stm32f103xb.s</Name>
         <ColumnNumber>0</ColumnNumber>
@@ -3628,9 +3628,9 @@
       </Doc>
       <Doc>
         <Name>../Src/main.c</Name>
-        <ColumnNumber>40</ColumnNumber>
-        <TopLine>31</TopLine>
-        <CurrentLine>47</CurrentLine>
+        <ColumnNumber>0</ColumnNumber>
+        <TopLine>22</TopLine>
+        <CurrentLine>45</CurrentLine>
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         <ContractedFolders></ContractedFolders>
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       <Doc>
-        <Name>..\Services\accelerometer.c</Name>
-        <ColumnNumber>26</ColumnNumber>
-        <TopLine>1</TopLine>
-        <CurrentLine>1</CurrentLine>
+        <Name>..\Services\alimentation.c</Name>
+        <ColumnNumber>29</ColumnNumber>
+        <TopLine>26</TopLine>
+        <CurrentLine>56</CurrentLine>
         <Folding>1</Folding>
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         <PaneID>0</PaneID>
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       <Doc>
-        <Name>..\Services\accelerometer.h</Name>
-        <ColumnNumber>28</ColumnNumber>
+        <Name>..\Services\alimentation.h</Name>
+        <ColumnNumber>5</ColumnNumber>
         <TopLine>1</TopLine>
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diff --git a/keil_project/MDK-ARM/Project.uvoptx b/keil_project/MDK-ARM/Project.uvoptx
index 2a75e7a..051d5ca 100644
--- a/keil_project/MDK-ARM/Project.uvoptx
+++ b/keil_project/MDK-ARM/Project.uvoptx
@@ -338,7 +338,7 @@
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@@ -377,7 +377,7 @@
           <Type>0</Type>
           <LineNumber>45</LineNumber>
           <EnabledFlag>1</EnabledFlag>
-          <Address>134220360</Address>
+          <Address>134220608</Address>
           <ByteObject>0</ByteObject>
           <HtxType>0</HtxType>
           <ManyObjects>0</ManyObjects>
@@ -409,22 +409,27 @@
         <Ww>
           <count>0</count>
           <WinNumber>1</WinNumber>
-          <ItemText>x</ItemText>
+          <ItemText>level</ItemText>
         </Ww>
         <Ww>
           <count>1</count>
           <WinNumber>1</WinNumber>
-          <ItemText>y</ItemText>
+          <ItemText>level_enough</ItemText>
         </Ww>
         <Ww>
           <count>2</count>
           <WinNumber>1</WinNumber>
-          <ItemText>angle</ItemText>
+          <ItemText>u2</ItemText>
         </Ww>
         <Ww>
           <count>3</count>
           <WinNumber>1</WinNumber>
-          <ItemText>angle_bon</ItemText>
+          <ItemText>niv_batterie</ItemText>
+        </Ww>
+        <Ww>
+          <count>4</count>
+          <WinNumber>1</WinNumber>
+          <ItemText>battery_level</ItemText>
         </Ww>
       </WatchWindow1>
       <Tracepoint>
@@ -530,8 +535,20 @@
       <tvExp>1</tvExp>
       <tvExpOptDlg>0</tvExpOptDlg>
       <bDave2>0</bDave2>
-      <PathWithFileName>..\Services\accelerometer.c</PathWithFileName>
-      <FilenameWithoutPath>accelerometer.c</FilenameWithoutPath>
+      <PathWithFileName>..\Services\alimentation.c</PathWithFileName>
+      <FilenameWithoutPath>alimentation.c</FilenameWithoutPath>
+      <RteFlg>0</RteFlg>
+      <bShared>0</bShared>
+    </File>
+    <File>
+      <GroupNumber>2</GroupNumber>
+      <FileNumber>4</FileNumber>
+      <FileType>5</FileType>
+      <tvExp>0</tvExp>
+      <tvExpOptDlg>0</tvExpOptDlg>
+      <bDave2>0</bDave2>
+      <PathWithFileName>..\Services\alimentation.h</PathWithFileName>
+      <FilenameWithoutPath>alimentation.h</FilenameWithoutPath>
       <RteFlg>0</RteFlg>
       <bShared>0</bShared>
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@@ -545,7 +562,7 @@
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@@ -565,7 +582,7 @@
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-      <FileNumber>5</FileNumber>
+      <FileNumber>6</FileNumber>
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@@ -577,7 +594,7 @@
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@@ -589,7 +606,7 @@
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@@ -601,7 +618,7 @@
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@@ -613,7 +630,7 @@
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@@ -633,7 +650,7 @@
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@@ -653,7 +670,7 @@
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@@ -673,7 +690,7 @@
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-      <FileNumber>12</FileNumber>
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diff --git a/keil_project/MDK-ARM/Project.uvprojx b/keil_project/MDK-ARM/Project.uvprojx
index 2d83920..0f7722b 100644
--- a/keil_project/MDK-ARM/Project.uvprojx
+++ b/keil_project/MDK-ARM/Project.uvprojx
@@ -398,9 +398,14 @@
               <FilePath>..\Services\Chrono.c</FilePath>
             </File>
             <File>
-              <FileName>accelerometer.c</FileName>
+              <FileName>alimentation.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\Services\accelerometer.c</FilePath>
+              <FilePath>..\Services\alimentation.c</FilePath>
+            </File>
+            <File>
+              <FileName>alimentation.h</FileName>
+              <FileType>5</FileType>
+              <FilePath>..\Services\alimentation.h</FilePath>
             </File>
           </Files>
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@@ -871,9 +876,14 @@
               <FilePath>..\Services\Chrono.c</FilePath>
             </File>
             <File>
-              <FileName>accelerometer.c</FileName>
+              <FileName>alimentation.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\Services\accelerometer.c</FilePath>
+              <FilePath>..\Services\alimentation.c</FilePath>
+            </File>
+            <File>
+              <FileName>alimentation.h</FileName>
+              <FileType>5</FileType>
+              <FilePath>..\Services\alimentation.h</FilePath>
             </File>
           </Files>
         </Group>
diff --git a/keil_project/Services/alimentation.c b/keil_project/Services/alimentation.c
new file mode 100644
index 0000000..8495844
--- /dev/null
+++ b/keil_project/Services/alimentation.c
@@ -0,0 +1,61 @@
+#include "alimentation.h"
+
+
+void alimentation_init(void){
+    RCC -> CFGR |= (0x1<<15);
+    RCC-> CFGR &= ~ (0x1<<14);
+    LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_ADC1);
+		LL_APB1_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_GPIOC);
+		
+    LL_GPIO_InitTypeDef pc0, pc2;
+		LL_ADC_InitTypeDef adc;
+    LL_ADC_REG_InitTypeDef adcReg;
+    
+		pc0.Pin = LL_GPIO_PIN_0;
+		pc0.Mode = LL_GPIO_MODE_ANALOG;
+		pc2.Pin = LL_GPIO_PIN_2;
+		pc2.Mode = LL_GPIO_MODE_ANALOG;
+	
+	
+		adc.DataAlignment = LL_ADC_DATA_ALIGN_RIGHT;
+		adc.SequencersScanMode = LL_ADC_SEQ_SCAN_DISABLE;
+		LL_ADC_Init(ADC1, &adc);
+	
+    adcReg.TriggerSource = LL_ADC_REG_TRIG_SOFTWARE ;
+    adcReg.SequencerLength = LL_ADC_REG_SEQ_SCAN_DISABLE;
+    adcReg.SequencerDiscont = LL_ADC_REG_SEQ_DISCONT_DISABLE;
+    adcReg.ContinuousMode = LL_ADC_REG_CONV_SINGLE;
+    adcReg.DMATransfer = LL_ADC_REG_DMA_TRANSFER_NONE;    
+    
+    
+    LL_ADC_REG_Init(ADC1, &adcReg);
+    
+		/*LL_ADC_SetChannelSamplingTime(ADC2, LL_ADC_CHANNEL_10, LL_ADC_SAMPLINGTIME_1CYCLE_5);
+		LL_ADC_SetChannelSamplingTime(ADC2, LL_ADC_CHANNEL_11, LL_ADC_SAMPLINGTIME_1CYCLE_5);
+    
+    */
+    LL_ADC_Enable(ADC1);
+    
+    //LL_ADC_EnableIT_EOS(ADC1);
+    //wait 0,2 �s, calibration is advised 
+    //LL_ADC_StartCalibration(ADC1);
+	}
+float u2;
+unsigned int niv_batterie;
+	float battery_level;
+	float get_battery_level(void){
+		LL_ADC_REG_SetSequencerRanks(ADC1, LL_ADC_REG_RANK_1, LL_ADC_CHANNEL_12);
+		LL_ADC_REG_StartConversionSWStart(ADC1);
+		battery_level = LL_ADC_REG_ReadConversionData12(ADC1);
+		u2 = (battery_level*3.3)/4095.0;
+		float level = u2*13.0;	
+		return level;
+}
+	
+	int is_level_enough(void){
+		if (get_battery_level()<(0.33*13)){
+			return 0;
+		}else{
+			return 1;
+		}
+	}
\ No newline at end of file
diff --git a/keil_project/Services/alimentation.h b/keil_project/Services/alimentation.h
new file mode 100644
index 0000000..c91294f
--- /dev/null
+++ b/keil_project/Services/alimentation.h
@@ -0,0 +1,24 @@
+// RIEN A MODIFIER //
+
+#ifndef ALIMENTATION_H
+#define ALIMENTATION_H
+
+
+
+#include "stm32f103xb.h" 
+#include "stm32f1xx_ll_adc.h" 
+#include "stm32f1xx_ll_bus.h"
+#include "stm32f1xx_ll_rcc.h"
+#include "stm32f1xx_ll_gpio.h"
+#include "math.h"
+
+/* =====================================================================================
+Les fonctions qui g�rent les IO (ajout par rapport � l'activit� 1)
+=======================================================================================*/
+
+void alimentation_init(void);
+float get_battery_level(void);
+int is_level_enough(void);
+
+
+#endif
\ No newline at end of file
diff --git a/keil_project/Src/main.c b/keil_project/Src/main.c
index fa7d249..ca7feab 100644
--- a/keil_project/Src/main.c
+++ b/keil_project/Src/main.c
@@ -21,7 +21,7 @@
 #include "stm32f1xx_ll_system.h" // utile dans la fonction SystemClock_Config
 
 #include "Chrono.h"
-#include "accelerometer.h"
+#include "alimentation.h"
 
 void  SystemClock_Config(void);
 
@@ -33,18 +33,18 @@ void  SystemClock_Config(void);
   * @retval None
   */
 	
-int angle_bon;
-int battery_level;
+float level;
+int level_enough;
 int main(void)
 {
 	
 	
   /* Configure the system clock to 72 MHz */
   SystemClock_Config();
-	accelero_init();
+	alimentation_init();
 	while(1){
-		angle_bon = accelero_angle_bon();
-		battery_level = get_battery_level();
+		level = get_battery_level();
+		level_enough = is_level_enough();
 	}
 
 	
