I would like to connect a LED to my raspberry pi, So I made some research and I found out if I have a low voltage LED I should use a resistor,
So I have here some LEDs, with a voltage of 2,2 ... 2,5v,
and I've here some resistors, 10k, 1k and 220R
I would like to know wich resistor should I use to not blow up my led (or my board )
I saw some videos where they use some LEDs with high voltage, like 12v so they don´t need a resistor... My question is, since the PI only gets 5v, using a 12v LED wouldn't cause problems such as low voltage warnings?
Thanks in advance!