Let us look at our hardware connection:
You can see a resistor there right? Yea. The resistor helps
to reduce the amount of voltage entering the LEDs. You can do yours without a
resistor; but know that the LED is at risk of getting blown/burnt out.
Congrats. You just started as an Arduino programmer/user.
We shall in our next tutorial, see how each of the
connections done above work.
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