hacked it in with an Arduino. The video does a wonderful job going into the details, but essentially by using an oxygen sensor with finer resolution (wide-band) and then outputting the appropriate ...

Calibrating the system using a bowl of clean water. There is no single parameter that determines the quality of a water sample, so the pollution monitor has no less than five different sensors.

With their cheap price tags, massive I/O provisions, and low power consumption, microcontrollers like the uber-popular ...

While the Arduino is a default choice by many for handling simple sensor-based designs ... the seemingly endless repository of cool project ideas on the internet may suggest that the Raspberry ...