I know that this is probably very simple for some folks here, so that is why I am coming to you guys!
I'm trying to make a simple meter using a pot and led output. I have 12v going to the pot, and what I don't understand is how I control the leds after that.. For simplicity's sake lets say I want to show 2v - 12v in even increments. The previous led can stay lit. So basically I want one led to come on at 2v, the next to come on at 4v, etc... I know I need to use resistors going to each led, but I don't know how to figure out what the value of the resistor should be.
I've found a few diagrams floating around, but I'm not the most educated when it comes to reading electrical diagrams.
thanks in advance!
I'm trying to make a simple meter using a pot and led output. I have 12v going to the pot, and what I don't understand is how I control the leds after that.. For simplicity's sake lets say I want to show 2v - 12v in even increments. The previous led can stay lit. So basically I want one led to come on at 2v, the next to come on at 4v, etc... I know I need to use resistors going to each led, but I don't know how to figure out what the value of the resistor should be.
I've found a few diagrams floating around, but I'm not the most educated when it comes to reading electrical diagrams.
thanks in advance!