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 According to Clarke's third law, I believe their entire robot works by magic. - dtengineering [more] |
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| According to Clarke's third law, I believe their entire robot works by magic. - dtengineering [more] |
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#1
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IR Beam Troubles
Has anyone got the IR Photoswitch beams working? We tried wiring them up but got a .01V signal.
We do have it running on 12v power. |
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#3
01-21-2006, 05:15 PM
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Re: IR Beam Troubles
Translation:
Did you connect a pull up resistor? The output is "open collector". "Open collector" means that it is essentially a contact closure to ground, not a logic-level voltage. It should work fine when connected to a digital input on the RC, because a contact closure to ground is exactly what the RC expects (it does provide pullups on its inputs). |
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