Consult the stage light, through the SCM and optocoupler, read the disc between how to locate, error correction function? A wheel mounted on the bearing X/Y stepper motor drive, bearing wheel rotation, reading disk sandwiched between the optocoupler, is through the singlechip and optocoupler, reading disk between positioning and correcting function? What is the design idea of the circuit? Thank you ~ ~ note: PWM pulse signal to stepper motor.
Pure empty talk did not, something similar, if wrong, hope to forgive me. I hope the landlord will come back to talk about ideas and feelings.
A light sensor can also be added in the form of light filtering, placed in front of the lamp, with a lens hood that allows only red light to pass through, and each time the signal is red, this determines the initialization position.
I don't know. What do you mean by location / error correction? If you haven't seen dance lamp, light color switching refers to the kind of individuals that can be positioned to initialize (boot) the color, then read a few teeth, determine the color, so that every time the shutdown to store the current color or restore to a predetermined color, can also remove a tooth, each rotation is uniform, long switching time is initialized color, but less than a color.
