Makers, developers and hobbyists who enjoy making projects from home automation using different Arduino microcontrollers, Raspberry Pi mini PCs or anything else that can connect to the Internet of ...

[Joseph] wrote in to share this home automation system he’s working on as a college project. He calls it the Room Engine and the house-side of the hardware is built on top of the circuit you … ...

The relay was very conservatively rated, both in terms of both current and voltage, and mounted on a generously sized heat sink. The system worked slick for a good two years, then one day, no heat.