Thread: Optical Sensor Output Overload
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Unread 03-02-2004, 21:18
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Re: Optical Sensor Output Overload
Quote:
Originally Posted by Sparks333
Hi!
Hey squide, the reason you have an overload is that the input for the sensor is 12vdc. Therefore, if you have it hooked up incorrectly, the signal will also be 12vdc when the switch is closed. That's really bad. the controller is only supposed to be getting 5vdc signal or 0vdc signal, but never 12vdc. The robot controller is pretty tough, so I do not think you will have fried it, but you will not get a consistent reading until you fix this. I have a schematic that I will be posting soon.
-Sparks333
The inputs are pulled up to 5 volts internally, so they're expecting to see either an open circuit or ground. The Banner sensors have an open collector output so its just like a switch. Its either open or grounded, there is no output voltage.