I’ve had this particular project in mind for quite some time, and was excited to dive into it with simple raw materials: my Raspberry Pi, a touchscreen, and a mechanical relay board. If you ...

The Raspberry Pi now comes in a wide variety of versions ... ready to slot on to a carrier board to break out all its IO. The Seaberry is one such design, as demonstrated by [Jeff Geerling ...

And thanks to their general-purpose input/output (GPIO) pins, you can easily connect multiple sensors to the board and build ... four components: Raspberry Pi, lightbulb, relay, and switch.