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


  • 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
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