but if a single rgb led need 4 pins to work, how can i connect the other 24 in 11 pins?
And how can i change the color of a single rgb led?
Alternatively you can use ShiftPWM with constant current LED drivers, which means you don't need a resistor one every led output.
QuoteAlternatively you can use ShiftPWM with constant current LED drivers, which means you don't need a resistor one every led output.No you need a constant current drive at each LED output. If you think resistors are expensive at $0.01 to $0.001 I am not sure where you will find a constant current drive cheaper.
1x 150ohm resistor (red) and 2x 100ohm resistor (green and red). Is it right?
I also read that with many shift register, my project could become slow
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