This is my instructable on charlieplexing a LED row/string with the arduino. I noticed that there weren't many instructables on charlieplexing using an arduino, so i made this. I tried to keep the project simple, but that didn't work very well. The soldering is complex, I wouldn't recommend this as a first time soldering project.
Parts: - 12 LED's; I'm using some 3 mm Red LED's - 4, 270 Ohm resistors; You can use other values as well - Perfboard/Veroboard; I used a piece 27 holes x 5 holes - Wire; I used some 26 gauge, solid core wire - Header pins (optional) - Arduino
Tools: - Soldering Iron - Hot glue gun (optional) - Helping hand (optional)