Here is a tested Arduino project that uses 3 sensor probes as water level indicator with 3 leds and one LCD display + a simple controller that turns on a motor when the water has reached the desired ...

The flow meter allows a hard limit to be set for the maximum amount of water allowed into the tank. He’s used an Arduino Micro to tie the project together, which also handles a real-time clock ...

This controlled water flow ensures the plant never gets too much or too little. However, since different plants require different amounts of water, you're free to modify the Arduino code's ...

The most obvious way of measuring water consumption is to install an off-the-shelf flow meter onto your pipe, which is something that Sensible Flow supports.