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) uses the ...

a flow switch was added in series with the flow meter, which only switches on the ESP8266 when water starts flowing. A latching circuit keeps the ESP powered after the water stops, giving it ...

If you’d like to get some hard data on your water usage, have a look at [Josh EJ]’s Sensible Flow project. It contains designs for a set of sensors ... a power-efficient Arduino Pro Mini ...