LEDs

Using Arduino General Electronics
10

Ok, I almost understood everything, thanks :slight_smile:

Anyways, reading here and there on the web, 3 more questions have come up to me, and I was hoping that you could answer them:

  1. How can current remain constant in my circuit if I limit it with resistors?

  2. In one of the websites you've linked me I found some schematics of a circuit in which the resistor was after the LED. How is this possible? Shouldn't the LED burn down before the current reaches the resistor?

  3. Considering the previous question, it has come up to me that I could in some way calculate the total resistance of my circuit and then place a big resistor at the end of it right before going to GND. Is this possible?

Thanks again in advance