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Unread 17-01-2013, 14:37
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FRC #2228 (Cougartech)
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Re: CIM->Victor 884->Arduino not working

Quote:
Originally Posted by Ether View Post
You are pushing 500 ma into the Victor's opto-isolator ??


That's what I got on the o scope. I put a 10 ohm resistor in line with the signal wire and took the voltage above and below the resistor then hooked the other channel on the o scope to a constant 0.1v and used the math function to multiply the channels
V=IR
I=V/R
I=Voltage drop across resistor/10 ohms
I=Vresistor*.1
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2009
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2008
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