There are 3 serial “NeoPixel” LED strings defined on CyberBrick Core MicroPython code:
- GPIO Pin 8 - single NeoPixel LED on CyberBrick Core PCB
- GPIO Pin 20 - NeoPixel LED channel 2 (default code supports up to 4 LEDs)
- GPIO Pin 21 - NeoPixel LED channel 1 (default code supports up to 4 LEDs)
For more about the pin-mapping, see: Where is documentation on building applications for Cyberbrick? - #17 by xrk
Note that the latter two NeoPixel strings are not available with the X12 transmitter module!
Interestingly, the default code does not make use of MicroPython neopixel library, but uses machine.bitstream instead: CyberBrick_Controller_Core/src/app_rc/bbl/leds.py at b5fc07d44d65143cfef1164ae6234099fcb11d62 · CyberBrick-Official/CyberBrick_Controller_Core · GitHub