Step 5: LIGHT IT UP!!!

Picture of LIGHT IT UP!!!
As the title says, LIGHT IT UP!!!!!!!!!!!

Plug it into your arduino and start programming.
D3v45t4t0r3 years ago
do you know wich amount of led max can be put in linear?

I'd like to know this too. Thanks for this instructable!

akellyirl2 years ago
It's best to add a resistor in series with the string to limit the current. With many LEDS in parallel without a resistor it's pretty much guaranteed that you will over-stress the pin and destroy the Microcontroller. On the other hand, adding a resistor will make the LEDs disappointingly dim. The answer is to use a Relay or Transistor to drive the string.