Laser Audio Transmission with L-CheapoAug 7, 2013
The L-Cheapo laser cutter can do more than cut, engrave, or burn. It can also be used for direct-beam audio transmission! Make sure your goggles are secured for this one!
The build was an L-Cheapo Mk4 with an LM386 preamp, feeding the PWM input for the laser cutter. The schematics for both the laser and the preamplifier are available on the L-Cheapo wiki page
Excuse the camerawork in the video, we were having a bit too much fun with this one.
Interested in L-Cheapo? Check out the home page.