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Unread 26-01-2015, 08:52
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Al Skierkiewicz Al Skierkiewicz is offline
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Re: Photoeye's not working-Difference between RoboRIO and Digital Side Card?

Seth,
That meter, as most modern meters, apply a current to the probes when in the "diode" mode and then measure the voltage drop directly. In a normal diode or transistor junction, the meter would read 0.7v. The specs say that the current in this meter is limited to 1 ma when in the diode mode.
I have to ask, was the "ON" indicator on the sensor illuminated and the output was not sensed by the roboRio? The RoboRio has a 40k pullup resistor to 3.3 volts which may not be enough to pas current through the Banner sensor.
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Al
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www.wildstang.org
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Storming the Tower since 1996.
 


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