February 2012

PIC16F886 based Camera Sound Trigger

  Check out this PIC16F886 based Camera Sound Trigger that Viktor just made. The knobs are used to navigate through the systems options and set the settings you need to capture your perfect action shot. All you need to do after it is built is find a light bulb to smash or a bullet to shoot through an apple. Thanks for sending this in Viktor. “The hardware is made up

DIY Solid State Tesla Coil Build

  Thanks to Michael Chen for sending in his DIY Tesla Coil Build. His DIY Tesla Coil Instructable takes you through all of the steps he took to build it. He is still working out some bugs in his electronics since he is able to fry some components if he isn’t careful but it does seem to work great when it is working. Only take on a Tesla Coil project

DIY Remote Control Ping Pong Ball Machine Gun

  Thanks to Andrew for sending in his DIY Remote Control Ping Pong Ball Machine Gun. The mechanism he used reminds me of the type that is normally used to launch baseballs and tennis balls. Even Nerf Gun Darts are fired using a similar method, I guess if the method works there is no need to make a better mouse trap. This system is controlled using an Arduino microcontroller and

250 kV Home Made High Voltage DC Power Supply

  If you have a project that needs a bit more than 3.3, 5 or 12 volts have a look at this Home Made 250 kV High Voltage DC Power Supply! Of course this isn’t your typical supply for the Arduino project sitting on the corner of your bench. 🙂 One thing to note is that this supply can pack a deadly punch so be very careful if you intend

iPhone SMS Remote Car Starter

  If you have a jailbroken Apple iPhone you might want to start using your phone to control your car. Check out this iPhone SMS Remote Car Starter project by Will O’Brien from Biobug that goes through the details and has the code available if this is something you want to play with. Via: Apple Phone Hacks and Electronic Labs “Requirements: An old jailbroken iPhone, an Arduino, iphone breakout board (I

RGB LED Ring - Version 2

  This RGB based LED ring is the second version of a project which has three LED driver chips which enhance the brightness of the color lights. I found the second version more appealing than its ancestor when I watched the video. The first version used only one LED driver IC which was less attractive than this one. If you want to give this cool RGB based LED ring a

Understanding Zener Diodes

Windell H. Oskay from EMSL created a detailed discussion on using Zener Diodes. He has designed a circuit flow using Zener diodes to control the reverse breakdown while designing up a circuit which is impossible to do if he would had used a regular diode. “Zener diodes are a special type of semiconductor diode– devices that allow current to flow in one direction only –that also allow current to flow