One great aspect of printed circuits is that they can really cut down the weight of the overall project. Sometimes, you still need to be able to program your circuits and have a little more power behind it. Arduino's are great but they can get very large and expensive for smaller projects. Therefore, I have created a tutorial on how to use an Arduino to program a much smaller AVR chip, the ATtiny. These have many of the same functionalities as Arduino, but allow you to incorporate them into much smaller designs. Many of the circuits that will be printed on this blog will involve these AVR chips and the tutorial for it can be found here.