I held a soldering iron since I was 5 and programmed since I was 8. Studied computational science. I like retro and low level.
This user joined on 08/19/2014.
Drives Red (250mW) and 405nm (140mW). Linear accurate current control with potentiometer and analog input. Safety interlock switches. On-time recorders.
When enabled, the left mouse button repeats at 2..30Hz, configurable with a sliding potentiometer (hidden in the weights bay underneath).
+PIC16F84, xtal, transistor, zener, few resistors and 9V battery