Crazyflie 2.1 + BigQuad Deck + WS2812. Is it possible?

[VitalyFan]

Hello! Can you help me please? I'm using Crazyflie 2.1 and BigQuad Deck. Is it possible to connect and control the WS2812 led strip using crazyflie-firmware with that hardware configuration? If possible, what I should do to make it works?

[ArisMorgens]

Hello @VitalyFan!

Usually, the easiest way of adding custom hardware to a Crazyflie platform is to create your own deck driver and force it to initialize. You can check how the deck API works here, and follow this tutorial to create your own deck driver.

I hope this can help you get started. Let us know if you need anything else.

[VitalyFan]

Thank you for answer, I hope it wiil help me

Can I use ledring driver as a base? Could you please explain me how can I switch IO_2 and IO_3 in this driver? I want to use IO_3 to control ws2812. Thank you

[gemenerik]

From what I can tell the WS2812 signal is generated using a hardware timer, so it's tied to a specific pin. To move it to IO_3 you'd need to change the timer channel configuration in ws2812_cf2.c