Electronic Hacks

Reading and Writing to the Atmega168 internal EEPROM

When using a microcontroller one of the most important feature to use is the internal non-volatile memory. This will allow you to store information that might be needed to store user selected features or system variables that need to persist power cycling. Interfacing with the EEPROM will depend on the microcontroller you are using. In this case it is an Atmega168. Our friend Daniel Garcia from Prostack has put together

E Rex Electric Sports Car - CES 2011

CES has a bit of everything. After you are done looking at the glow in the dark iPhone cases you can check out the E Rex. Mike Worry, the CEO of Nuvation Engineering gives us an overview of the car. It’s an electric sports car which has been built using a Campagna Motors T Rex as the donor vehicle. Of course the T Rex is gasoline powered so converting it

512 LED Cube

This is one crazy 8*8*8 LED Cube Build. We have seen other LED Cubes here before but I have never seen one documented as well as this one, if you are looking for some pointers when you build your own this project would make for a great resource. Latches are used to provide the large number of outputs needed to interface to the cube. Check out the video below for

DIY 1970's Calculator

If you think about the technology in the 70s and wonder what a home made calculator would look like this is exactly what I have in mind. A wooden box is used to house multiple small circuit boards and reams of colored wires connect everything together. I remember hearing about the Woz designing many of his creations on paper rather than with actual electronics since the parts were so expensive.

Car Map Light Cheap Fix

Not sure why car manufacturers held onto bulbs for so long. LEDs are the dream solution to the high vibration hard to get to locations that these car bulbs are normally found. Our friend Pete Mills had one of his map lights go bad, the fix for him cost a few dollars and the parts were easily harvested out of a cheap LED light. Benefits of this cheap fix is

Plasma Speaker

If you are wanting to build a speaker that will make your friend with the 10,000 home theater envious you need to build one of these Plasma Speakers. Teravolt has made a second version with lots of improvements and it sounds great! There is a full schematic provided so you can easily build it based exactly on this design. I prefer to read a normal schematic diagram but have a

New Year Countdown Project

Brian Dougherty has made this cool New Year Countdown Project for one reason. That is to let us ring in the new year with style! He will be broadcasting the results of the project for the world to see on his Ustream page (also embedded below for your viewing pleasure). Us in the electronic field love to use segmented displays to display numbers and Brian is the same, only thing