Switched 5v from the PC to detect IF the PC is on to a GPU of tha arduino. Note line level conversion my be needed. Use a relay with a 5v coil, a couple resistors to create a voltage drop, or line ...

Did you know that you can use Arduino to turn on an LED when you press a button? Well, it is true, you can do this! Leaving the joke aside, let me show how you can achieve this. You will need the ...

The real-time instruction set is somewhat limited, making it a breeze for newcomers to begin using the Arduino. While that may turn some people off, it still has enough functionality baked in to ...

The act of turning on your PC is a simple one, but pressing the power button isn't the only way to do it. In fact, I would argue the power button is archaic, and there are significantly more ...

The entire system is built on the backbone of an Arduino Uno with a few other parts totaling at about $150. That seems expensive, but DeBoisblanc's build covers a lot of ground.

Tinkernut shows you how to make use of it by turning it into a smartwatch with an Arduino brain. Using a Nokia 1100, Tinkernut walks you through pulling apart the old phone, connecting it to the ...