Help needed - where to place resistor(s)?

Thread Starter

ralleberg

Joined Jan 30, 2020
2
Hi Forum,

I'm struggling a bit about how the best setup would be of my circuit. I have tried to illustrate/simulate my circuit but I want your opinion on how the correct way is.
iCircuit dosen't have Bi-polar LED's so that why I'm having 4 pair of LEDs. In the real world I'm using this one: LINK with a common anode.

I currently have 1k and 220 resistors available.

I've tried different scenarios already but the one that is working IRL, is affected by the amount of LEDs powered on. How do I set it up so no LEDs is affected on the current by each other.

Sorry, I know this is quite simple and something that you should know of, but this is my first project in this scale.

Looking forward hearing from you, Rasmus.Test circuit.png
 

MrChips

Joined Oct 2, 2009
34,626
Resistors go in series with each LED.
This way, you can adjust each resistance in order to balance each LED brightness.
 
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