To kill a mouse

LoopyBytelooseLoopyByteloose Posts: 12,537
edited 2004-08-15 - 16:39:14 in Robotics
I have seen that one may use a little slotted wheel from a mouse to encode the shaft of motors as a speed or position indicator.

Other than the obvious -- Do use an optical mouse.· Are there any particulars.

I really hated cleaning the litte guys before I got my optical, so I wanna chop some.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
G. Herzog in Taiwan

Comments

  • LoopyBytelooseLoopyByteloose Posts: 12,537
    edited 2004-08-15 - 16:39:14
    Progress report.

    I took apart a mouse and removed the two 'encoder' wheels.

    They use a LED and a photo transistor to create a pulsed output.

    I found that I could salvage these also, by gently cutting up the circuit with a hacksaw.

    So now I have two encoders and two sets of LED/phototransistors that I can add to two motor shafts.

    The 'encoder' are merely slotted [noparse][[/noparse]no quadriture] so I think that they might work best with a H-bridge and matching or measureing velocities.

    What is left? I have to reverse enginner the photo-transistors and LEDs (these are the very tiny kind of LEDs) to figure out how to power them.

    All in all it seems very sucessful.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
    G. Herzog in Taiwan

    Post Edited (Herzog) : 8/19/2004 7:37:10 AM GMT
Sign In or Register to comment.