diff --git a/keil_project/Services/Servo.h b/keil_project/Services/Servo.h
index 7d3f780..07c791c 100644
--- a/keil_project/Services/Servo.h
+++ b/keil_project/Services/Servo.h
@@ -1,8 +1,26 @@
+/**
+  ******************************************************************************
+  * @file    Servo.h
+  * @author  CAVAILLES, Kevin and GÜLDENSTEIN, Jasper
+  * @brief   Service for using the Servo to set the sail angle.
+  ******************************************************************************
+  */
 #ifndef SERVO_H
 #define SERVO_H
 
+/**
+  * @brief Initialziation function for the RF_OUTPUT module.
+	*        The period of the PWM signal is 20ms.
+	* Peripherals used: TIM1
+	* Pins used: PA8 (TIM1 channel 1)
+  */
 void SERVO_Init(void);
 
+/**
+  * @brief Sets the angle of the servo using a PWM signal with a on time between 1ms and 2ms and a resolution of 1us
+	* @param angle of the servo between XXXXX and YYYYY degree
+  */
 void SERVO_SetAngle(int angle);
 
+
 #endif