DVDBreakout - A simple breakout board to control the laser and the two coils of an Optical Laser Pick-up Unit
The source for the DVDBreakout Board that I designed at SteamHead can be found here:
Designed the board to look scientific.
The board can power the laser diode of a DVD burner with a constant current set by the “Laser” potentiometer.
The two coils can be moved left and right or up and down with the potentiometers.
The circuit can be used to make a simple laser projection microscope.
The circuit is tested and working. I use 4 AA (or AAA) batteries to power it. For the REF voltage I pick 1/2 of the full voltage from the battery holder directly with an extra wire.