This DIY electronic project ... When the sensor detects that the moisture content is already below 30%, it sends a signal to the Arduino, which, in turn, activates a water pump to provide ...

This is a simple arduino project for a soil moisture sensor that will light up a LED at a certain moisture ... in the dry soil and measure the resistance value and then pour water and measure it again ...

There is no single parameter that determines the quality of a water sample, so the pollution monitor has no less than five different sensors ... network runs on an Arduino MKR GSM 1400 module.