Build your own high-quality water sensor to monitor your pool or spa.
Building a "Solar Power measuring Junction Box" with solar charging a 12 VDC Battery light sensing and Temperature Sensing going to MQTT.
Stuck at home in lockdown and needed a way to connect my old bicycle and old indoor trainer to my fitness watch / phone via bluetooth.
The device uses cheap, off the shelf components to provide live data on stream and river conditions like stage, temp, and conductivity.
Keep your plant looking stylish on your desk and alive while monitoring air quality, temperature, humidity, and more in organized style.