I've been following this great tutorial: http://www.instructables.com/id/Micro-LASER-Show-with-a-CD-Lens-Mechanism
BUT: I'm having problems identifying which cables control which axis - any tips on how to find this out? I'm debugging, trying to isolate horizontal and vertical movement [with setPos(x, 0)
and setPos(0, y)
] and can manage to get a good clean vertical movement but the horizontal movement always has a small vertical movement as well.
Also, I wonder about the code line digitalWrite(8, HIGH);
- doesn't one of the corresponding coils need to be ground/zero/LOW for this to work?
Code can be found here: http://www.instructables.com/id/Micro-LASER-Show-with-a-CD-Lens-Mechanism/step7/Connect-the-signal-source/
but also see the comments below where it's better formatted.