@mfalkvidd Thank you for reply!
I'm trying this before, when I change it to
define PULSE_FACTOR 1000
I get this red line in the code;
attachInterrupt(digitalPinToInterrupt(HW_DIGITAL_INPUT_SENSOR), onPulse, FALLING);
attachInterrupt(digitalPinToInterrupt(CW_DIGITAL_INPUT_SENSOR), onPulse, FALLING);
C:\Users\Барков\Desktop\_2WaterMeterPulseSensor\_2WaterMeterPulseSensor.ino: In function 'void setup()':
_2WaterMeterPulseSensor:105: error: 'onPulse' was not declared in this scope
exit status 1
'onPulse' was not declared in this scope
```