Creating a bending/soldering jig.
After I finished a working prototype I created an Arduino shield.
|27||LEDs||generic (I used 3 different kinds - 9 of yellow, orange, and red - all have a voltage drop around 2.0V)|
|9||Resistor||value depends on LEDs (I used 330Ω orangeorangebrowngold)|
|1||PCB||Order from BatchPCB for $16 (board and schematic)|
Here is the Arduino source code for the shield (check out the download section):