Raspberry Pi AirPlay Speaker


The Raspberry Pi is a full Linux computer that’s about the size of a credit card and sells for $25–$35. It has a 700MHz ARM CPU and 512MB of RAM. Because of its capabilities and its low price, it has become wildly popular with the hobbyist market. Some people have... Read more »

Make LED Greeting Cards Without Soldering


Electronics greeting cards are a great, approachable project for beginners to assemble in under an hour. You won’t need to plug in a soldering iron, since these cards are wired using a special conductive foil tape. Not only is this tape conductive, it’s super sticky and it remains conductive even... Read more »

Build an Easy, Versatile Magnetic Flashlight Tripod


When I discovered my Stanley Tripod flashlight had a battery acid leak, it was, unfortunately, exactly when I needed a tripod flashlight the most — for fixing a leak under my sink. I went to my flashlight drawer and realized I already have plenty of flashlights, all I really needed... Read more »