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 ...

Raspberry Pi enthusiasts may be interested in a new stackable eight relay card which has been specifically designed for the Raspberry Pi range of mini PC systems and offers the ability to add up to 64 ...

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 ...