:-[ This may sound silly but I need to know before frying my board. Why would I use a resistor for the example on page 31 of Arduino_booklet02.pdf? In the previous example (blinking LED) there was no resistor. Correct me but the current runs through the resistor and back into the board (7) but n…

newbie question on resistors

system November 7, 2007, 8:05am 3

Easiest just to read LadyAda's latest tutorial. It goes in to this indepth.

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