diff --git a/solarpump/solarpump.ino b/solarpump/solarpump.ino
index 22cf8147db33130973eaa9778f4837a16424d123..e893c5284f008e86d88c977e870a44e215ccec4e 100644
--- a/solarpump/solarpump.ino
+++ b/solarpump/solarpump.ino
@@ -46,6 +46,11 @@ void controlPump(uint8_t pumpPin, float tempUp, float tempDown) {
 	}
 }
 
+/*
+ * prints a float where the decimals specify the numbers of digit, which are printed,
+ * after the decimal point and
+ *  rightPad specifies the total length printed, where empty spots are filled with spaces
+ */
 void printFloat(float f, uint8_t decimals, uint8_t rightPad) {
 	String s = String(f, decimals);
 	for (uint8_t i = s.length(); i < rightPad; ++i) {
@@ -54,6 +59,11 @@ void printFloat(float f, uint8_t decimals, uint8_t rightPad) {
 	lcd.print(s);
 }
 
+/*
+ * display the temperature of the four temperature sensorse and
+ * also shows if the pump is running
+ * shows no temperature if sensor state is in LONG_TIME_ERROR 
+ */
 void displayText(float t1up_C, float t1down_C, bool pump1, float t2up_C, float t2down_C, bool pump2,
 				UPDATESTATE state_t1up, UPDATESTATE state_t1down, UPDATESTATE state_t2up, UPDATESTATE state_t2down) {
 	// update the display only after a second has passed
@@ -124,6 +134,7 @@ void displayText(float t1up_C, float t1down_C, bool pump1, float t2up_C, float t
 	}
 }
 
+// turnes the display on for 30 seconds
 void displayLight(bool turnOn) {
 	const uint32_t lightMillis = 30000;
 	static bool curState = false;
@@ -140,6 +151,12 @@ void displayLight(bool turnOn) {
 	}
 }
 
+
+/*
+ * main setup function
+ * initialize every electronic component 
+ */
+// main setup function 
 void setup(void) {
 	lcd.init();
 
@@ -153,6 +170,13 @@ void setup(void) {
 	pinMode(BUTTON, INPUT_PULLUP);
 }
 
+/*
+ * main loop function
+ * 1. Check if button was pressed.
+ * 2. If button was pressed,turn display on and say the temperetures.
+ * 3. Check if pumps should be turned on or out.
+ * 4. Update the display.
+ */
 void loop(void) {
 	static float t1up_C = 0.0;
 	static float t1down_C = 0.0;
diff --git a/solarpump/temperature.ino b/solarpump/temperature.ino
index 35534d4360556fc03ad778dc4af4057767ee95ef..9c3b9eec7cb8de9ea1667f42da42ff43731efc52 100644
--- a/solarpump/temperature.ino
+++ b/solarpump/temperature.ino
@@ -127,4 +127,3 @@ void temperatureBegin(void) {
 	dhtT2up.begin();
 	dhtT2down.begin();
 }
-