Fortunately, with a bit of electronics hacking, you can get those fan blades whirring without having to flip a switch. It’s a fairly simple project, too: just hook an Arduino Uno up to a motion ...

At the most basic level, all they needed was a way for an Arduino ... fan running for two hours. If the tool keeps running, then more time gets added to the clock. This ensures that the air in the ...

[Jaren] is occasionally forgetful, and frequently wonders if he’s left the lights on in his server room. Not knowing if ... ambient light sensor to his Arduino, which displays the data on ...