A note from July 6, 2018
When I was in high school, I wrote a short post on building a low-cost Arduino on a breadboard. It’s been quite some time since I’ve done any significant hardware hacking, but since my old blog is mostly dead at this point I reproduce that post here
I’ve burnt out a few Arduinos recently, and have found it expedient to just build my own on a breadboard rather than pay $34.95 and buy an Arduino Duemilanove online. It’s cheaper ($7.40, without FTDI or breadboard, SparkFun), and easy to fix if something goes wrong. Note that this tutorial does NOT include a voltage regulator, power will come from the FTDI board.