I'm trying to DIY about a dozen BlinkSticks (discontinued, Adafruit) pictured here
I'm thinking to use a Digispark ATTINY85 to control a single RGB LED to show the status of some program running under Linux. Here is the proto board I have my eye on:
I could either use a single individually addressable RGB LED with a built-in WS281X controller
or a plain RGB LED with each color pin connected to a GPIO pin on the TINY85.
This is my first Arduino project, so I'm not familiar with the best way to approach this project. I'm trying to keep the part count low as well so the serial data approach is appealing too. Has anyone done this before and can explain their setup?
Prior work I've found for the simple control approach: