As the resistance increases in potentio meter, my dc motor speed is reducing. how to inverse this. that is as resistance increases, the analogue input value should be reversed and motor should run fast as resistance increases. can any body help me out in solving this. i am completely new to arduino. …

Reversing the analogue input.

system May 3, 2014, 5:19pm 6

Why bother with map?
Divide by four is simpler.

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