It runs on an Arduino MEGA 2560 PRO (or similar microcontroller) and supports a wide array of additional hardware including pressure transducer, water level sensor, flow meter, OLED display, and more.

With [Debasish]’s entry for The Hackaday Prize, an Arduino MPPT Solar Charge Controller. This Maximum Power Point Tracker uses a buck converter to step down the voltage from the solar cell to ...