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Topic: Push Button LED (Read 908 times) previous topic - next topic

darkenney

In the Push Button LED tutorial, why is the blue leg needed (pic 1)? Why not just out from power through switch, led, resistor, back to ground (pic 2 from a non-arduino setup)?

AWOL

Quote
Why not just out from power through switch, led, resistor, back to ground (pic 2 from a non-arduino setup)?
Why not indeed.

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