There are a flame sensor and a water pump up forward, as well. ... 3 thoughts on “ Arduino Fights Fire With… Water? ” Chris says: January 8, 2019 at 1:54 am ...

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.