Problems with interrupt function

[6v6gt]

@StefanL38

Either you post what you mean or it stays undiscovered until I need to use this code in reality

I'm sorry I misinterpreted this because I did not look carefully enough at the changes you made in the loop.

[pharos111]

Good afternoon, thank you very much for your responsiveness, after compiling the relay was triggered to turn on and did not turn off. Turned off after pushing the button. Also after pushing the button again nothing worked. Tried substituting this formula for my sensor in different places. Also nothing worked.
Formula water flow-= 1.0 / 3510.0 according to the hall sensor and datasheet

[StefanL38]

You are supposed to read in the code and learn

@StefanL38

const byte PumpOn  = LOW; // change to HIGH if relay is HIGH-active
const byte PumpOff = HIGH;// change to LOW if relay is HIGH-active

change the baudrate in the serial monitor to 115200

@StefanL38

void setup() {
  Serial.begin(115200);

same thing here. The name of the function CalculatePrintVolume()

says what this function will do if you have done
Serial.println("replace with calculation pulses to Liter");

@StefanL38

void CalculatePrintVolume() {
  Serial.println("replace with calculation pulses to Liter");
}

best regards Stefan