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Christmas Tree Train: Scribbler Robot

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Published on Dec 19, 2012

Train tracks are for suckers! Just make a circular path under the tree with white tape and let the Parallax Scribbler robot do the honors. Added a series resistor (~200 ohms) to the stock IR LEDs for better line detection.
Ultra simple code:
HIGH 3
main:IF IN4=0 THEN PULSOUT 13,2500:HIGH 8:ELSE PULSOUT 13,1800:LOW 8




IF IN5=0 THEN PULSOUT 12,2500:HIGH 10:ELSE PULSOUT 12,1800:LOW 10
GOTO main

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