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Originally Posted by deltacoder1020
take the banner, hook up +5v, GND, and one of the two sensor wires (they are mirrors of each other, one true when the other is false), and plug it into a digital input. play around with it. when the banner sees the line, it will return one value (either 1 or 0), and when it doesn't, it will return the other. look at the code to map which digital I/O pins are inputs vs. outputs in the default code.
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This is incorrect. The Banner sensors need between 10 and 20V power supply so you will have to connect them to a 20 amp breaker. Its ok to power more than one sensor from a single breaker. Connect the BROWN lead from all of the sensors to +12V. For each sensor, connect the BLUE lead to the ground pin on the RC and the WHITE lead to the sig pin. The WHITE lead is the normally closed side, so the RC will see a 0 when the sensor does not see the line and a 1 when it does.
I haven't looked into it, but the sensors in this years kit are different than previous years. I don't know if they can be used to see the line or not.