This project idea scored 3/3 stars, combining electronics, water and creating something from scratch. I couldn't resist building my own reed switch array water level sensor.
This kind of sensor has a floating part moving up and down a sensor tube.
It's not an off the shelve solution to sensing water levels, buying a water pressure sensor or an ultrasonic level sensor would probably be easier, but DIY is fun!
My goal was to do some electronics and 3D design, 3D print, experiment and get a circuit board fabricated. I'd build a sensor using easily obtainable parts whenever possible. The electronics should be easy to build at home.
I will use it to monitor and log the water level in Home Assistant. Getting to automate the adding of a minimal amount of tap water to the tank during the summer will be a useful feature.Continue reading ...