Now available with the Sync Module 2 'home hub', the Blink video doorbell is a very competitively-priced product ...

Meet the little board that could: [alcor6502]’s tiny USB relay controller, now evolved into a multifunction marvel.

At the same time, standard relay ... of the circuit. Each relay channel on the module has input control pins connected to one of the GPIO pins of the Coin board (for instance, GPIO 3 is connected to ...