Raspberry Pi owners looking to use higher voltages with their mini PC, might be interested in this new opto-isolator board called the Opto-pi which has been specifically designed to be used with the ...

The board adds eight output and eight inputs to Raspberry Pi, as well as various LEDs, switches, and a couple of relays. Most importantly, adding one to a Raspberry Pi turns it into an autonomous ...

A heating and cooling thermostat requires a web-connected microcontroller, relays for activating the external circuits, and analog inputs for reading the temperature ...

Over the last decade, the open-source movement has not only transformed the world of software, but also catalyzed a sweeping revolution in hardware tinkering. At the heart of this shift lies a ...