If you are thinking that this transformer is quite beefy you would be right. Youtube user Photonvids has designed it to be connected to 220V and it has an open circuit secondary voltage of around 4 volts. This means you can safely touch it with your fingers but I would step back if someone was planning to short it out with a crowbar. I guess that might be a
 Thanks to Noah Farrington for sending in his latest project which s a Wave activated Light. To make the magic happen he is using a ATTiny microcontroller, a voltage regulator, an ultrasonic distance sensor and a bright LED. The first version was done with an Arduino but that was overkill for Noah since he doesn’t need much computing power or pins. The small 8 pin microcontroller looks perfect for
Thanks to Sunny for sending in his latest project, the Raspberry-Pi Automatic Packet Reporting System called the piGate. “I present here, an implementation of an APRS iGate using the Raspberry-Pi. An APRS iGate is an Internet gateway that gates packets from the radio/RF side to the  APRS-IS on the Internet (and vice-versa). The APRS-IS is an Internet based network that connects APRS networks from all around the world and
 The prize this week is a credit card knife, it has a ton of features to get you out of a jam in a network closet or your next camping trip. This contest will run for one week (October 27- November 2, 2012). Ending time is based on central standard time. To enter, identify the item above and what it can be used for. Please do not give
We have seen Al Linke’s project before. His latest creation is powered by an IOIO Board and uses a large RGB matrix display for the users to see what is going on. An IR proximity sensor shines through the mirror to sense when someone comes close, the display looks great even though this isn’t a 2 way mirror. Al scored the back of a regular mirror to allow the
 Even before you send out your PCB for manufacturer you can have a realistic image of the finished populated board! Thanks to Ian at Dangerous Prototypes I think we will start to lots of Rendering 3D PCB even before a soldering iron has been used. Best of all it won’t cost you anything other than some time to learn a new skill. The engine used to render the
 This DIY Tin Electroplating process will come in handy if you ever want to protect some copper in a project from oxidizing. Green copper looks great on a roof but not in your projects. Dane from Transistor Man shows us how he electroplated some tin onto some copper buss bars. Other than some stuff you probably have around the house you will need some tin and muriatic acid.Â
