By counting the pulses from the output of the sensor, we can easily calculate the water flow rate (in litre/hour – L/hr) using a suitable conversion formula. The Arduino Sketch (code ... currentTime; ...

This articles describes how you can use I2C (TWI) communication, Arduino and ... address of sensor 2 int address3 = 74; //decimal address of sensor 3 void setup() { Serial.begin(9600); Wire.begin(); / ...

it would be impossible to tell the difference between a legitimate lower limit reading on a sensor and a broken loop wire. So how do you incorporate a 4-20 mA device into your latest Arduino ...