December 22, 2012

Name the Thing Contest – 214
Contests

    Happy holidays! The prize this week is an ultrasonic sensor, a breadboard and a breadboard power supply. This contest will run for one week (December 22 – 28, 2012). Ending time is based on central standard time. To enter, identify the item above and what it can be used for. Hint, this board is popular at this time of the year. Please do not give the answer in

Solid State Relay allows DIY Projects to Safely Interface with Line Voltage
DIY Hacks

  If you want to play with line voltage you need to be a lot more careful compared to working with 5 or 12 volts.  Viktor has built a nice compact system for easily interfacing line voltage powered items to his DIY projects. Instead of trying to breadboard the line voltages or make a temporary rig to switch line power he gutted an old power brick and mounted a large