So I have a fun little project that I started today at work. It involves putting copious amounts of single LEDs and LED strips onto costumes that will be used for a "mega-spectacle" outdoor post rodeo show. Needless to say, there is little ground work prepared but we will be building a prototype this week along with specing parts and designing some custom PCBs. The current plan is to use Arduino boards coupled with the Jimmy Rodgers LOL (lots of leds) pads that we will wire out of. This will allow us to put up to ~200 LEDs per circuit board. So I figured I may as well attempt to document the process for those who wish to follow the process (seeing as it is a newer emerging technology). If you have tips or tricks feel free to add them, but I shall attempt to keep this updated with the process.
Arduino Tutorial - Learn electronics and microcontrollers using Arduino! (basic tutorial)
Arduino - ArduinoBoardUno