Have you ever wanted to turn external electrical devices ON/OFF from your PC? In this article, we will explain how to turn LEDs on and off from a PC using the "USB RELAY X-RL2 (2-channel)," a ...

[Jean-Christophe Rona] found himself with some free time and decided to finish a project he started two years ago, reverse engineering cheap 433MHz home automation equipment. He hopes to control his ...