Sorry thought I responded to that one. The easiest thing to do would just be to buy a board that has more PWM channels. PWM is what lets you control the precise voltage going to the LED’s.
You can learn to do multi-plexing in your second project. 
Sorry thought I responded to that one. The easiest thing to do would just be to buy a board that has more PWM channels. PWM is what lets you control the precise voltage going to the LED’s.
You can learn to do multi-plexing in your second project.