Charge up your USB devices with the power of the sun. By adding a small solar panel and two diodes to a standard USB cable, you can plug that cable into USB devices needing a recharge. It’s so easy. Let’s get started making a solar USB charger. Video shows the Solar USB Charger being tested […]
Safely and effectively charge your USB-powered devices when you are away from your computer with this handy charger! Please note: There have been reports that the Minty Boost has issues charging the iPhone 3GS.
This is a step-by-step guide to how I built a GPS-based puzzle box. It’s more of an example than a strict how-to. Whilst I’ll show you everything and include my source code, don’t expect a complete list of part and to end up with a finished product. You’ll need to find a box that suits […]
This project uses simple electronics to create an alarm circuit for a shoulder bag. The key components are two 1/8″ headphone jacks with “normally closed” switches, which detect whether a plug is in the jack. Wiring two of these jacks in series with an alarm creates a circuit that activates when both plugs are removed. […]
Hack two simple pieces of electronics for a new purpose. This cell phone charger is not for those who use their phones a lot, although it could have other purposes, like being an MP3 player charger or anything that charges from a USB connection.
For sous-vide and more — it controls both heating and cooling!
Traction is all about digging into the terrain. When the ground is covered in snow and ice, rubber just doesn’t cut it anymore. Studded tires can really improve your bike commute in the winter months or allow you the adventure of off-road riding in winter months. The addition of transverse chains on the rear wheel […]
