Newbie here, I'm using the PCA9685 and Adafruit library. Which has 16 Channel, 12bit pwm
However I am facing issue to power 160 RGB leds split into 5 groups each has 3 channel.
40 leds per channel.
one RGB led is taking 20ma
I need about 3.2A to power all of them.
My question is :- 1. Is it possible I drive all the RGB Leds with a common anode of constant power from 5A ubec then sink them with the pwm pin ?
- or I need to use common cathod RGB leds with one mosfet (IRLU024N) each per channel ?