hi everyone..a have a single question. is it possible to build a moving message with a single laser diode?
Some years ago, the magazine Elektor published instructions about projecting words on a screen using a laser.
The laser is pointed at a mirror that is moved by means of a pair of coils.
They included instructions about how to build these coils.
I donâ€™t remember when this article has been published, but you can ask Elektor.