[Renzo Mischianti]’s friend has to keep a water tank topped up ... with a solar-powered sensor that communicates over LoRa, and a controller that receives the water level readings and powers ...

The obvious answer is to measure the level of the tank ... hall effect sensors to measure the Yrotation of what amounts to a waterwheel. It counts the clicks of the wheel as the water turns ...

Check out the new water level sensor circuit. The simple water level indicator circuit presented here makes this system automatic, i.e. it switches on the pump when the water level in the overhead ...

Because the sonar sentry is measuring the water level with the contactless method, water can stay unspoiled, but excessive humidity/frequent water splash will bolt down the ultrasonic sensor ...