diff --git a/src/main.cpp b/src/main.cpp
index 5731d55..47cf4ac 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -169,8 +169,6 @@ void loop() {
   unsigned long loopmillis=millis();
   enableTiming=true; //reactivate
 
-
-  
   
   ec_loop(loopmillis);
 
@@ -227,9 +225,9 @@ void loop() {
 
   
 
-  if (eccalibrationoutput && !digitalRead(PIN_BUTTON) && !getReading) { //Calibration UI
-    if (!isValueArrayOK(ec_calib_array,EC_CALIB_ARRAY_SIZE,EC_ADC_UNAVAILABLE)) {
-      for (uint8_t blink=0;blink<5;blink++) {
+  if (eccalibrationoutput && !digitalRead(PIN_BUTTON) && !getReading) { //Calibration UI . Button Pressed
+    if (!isValueArrayOK(ec_calib_array,EC_CALIB_ARRAY_SIZE,EC_ADC_UNAVAILABLE)) { //Calibration Array filled?
+      for (uint8_t blink=0;blink<5;blink++) { //Error Blink
 #ifdef PIN_LED
         digitalWrite(PIN_LED,HIGH);
         delay(100);
@@ -245,7 +243,7 @@ void loop() {
         delay(100);
 #endif
       }
-    }else{
+    }else{ //Calibration Array is ok, initiate ec reading
       getReading=true;
       force_ec_measurement=true;
       ec_flag_measurement_available=false;