SK9822 digital LED to replace APA102


#1

Is there any foresight to add support for the SK9822 digital LEDs?
Currently APA102 5050 is sold out, and it seems that the manufacturer no longer does it, I do not know if it will be forever, my suppliers tell me that at least in a couple of months there will be no stock and they do not know if it will be done again.

The replacement seems to be the SK9822. I want to try it, because I’m not sure if it’s 100% compatible with APA102 5050, or there are differences that affect the software. Pinout is compatible, also with Data and Clock signals, though seem slower clock.

Interestingly, there is stock of the APA102 2020 (2x2mm), much smaller than the APA102 5050 (5x5mm), I will use it in some designs, software level is compatible with the 5050.


#2

I added initial support to the SmartMatrix Library for Photon:

Search the Particle Community thread for SK9822 to see some interesting discussion around hue shift and issues with the SK9822.

I’m dissapointed to hear about poor availability for the APA102. I have a feeling a lot of vendors selling “APA102” 5050 LEDs are actually shipping SK9822 instead. I think I could write some code that drives the LEDs and tells you if you have APA102 or SK9822. I’ll do that when I get back into some APA102 projects. At the moment I’m focusing on multiplexed panels.