I am planning to build a custom keyboard, using a pro micro and QMK firmware, and on my plan there would be an excess of 3 PWM pin. So I thought I can maybe put RGB leds on it on parallel. But the problem is how, it is just possible that I will just wired them on parallel, then it will work or I need to put some resistor or diodes on it? Also IF I want to control its brightness what should i need?
I will appreciate any advice will come, thanks.
BTW I don't have the parts for now so I cant test it. I am on the process of sourcing the part on where to buy for it.
I hope this is the right place to ask about this, please forgive I am very new in electronic, I just need some guidance.
Pro Micro Link to Aliexpress.
I am planning to put 7 individual LEDs or if possible I will put 15 or 25 LEDs so all the keys has LEDs