Society of Robots - Robot Forum
General Misc => Misc => Topic started by: Xyver on July 08, 2010, 02:50:36 PM
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If I was to make a line follower robot with, say, 5 IR LEDS and 5 IR receivers, then does that mean I need to use 5 input pins on an Arduino? Or is there some way to combine them...
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The easiest is to use 5 inputs pins. There are multiplexing methods but would require a few pins to control therefore you wouldn't save pins for only 5 inputs.