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I'm trying to use a L293D chip to power tow motors but I can't get it to work, I've tested the motors separately and they both seem to work. I've connected the chip using the following layout: And I'm trying to test the motors with this code: Any ideas on why it's not working? Thanks

I am trying to get a bus to follow lines on a road using sensors, if the middles detects a line its fine but if any of the others do it will turn to correct its position. The code works in theory but in reality my chip is detecting inputs that aren't there any it doesn't seem to be working...