tasmota32 + P9813, how?

[ffgomez]

Hi there!

I am not able to make a P9813 (connected to a RGB led stripe) work with an esp32c6, I don't have the entry P9813dat/clk in the GPIO. It is supposed to be already in:
https://tasmota.github.io/docs/Components/#tasmota32

I've tried so far:

• use full standard tasmota32 from https://tasmota.github.io/install/
• compiling my own image with tasmocompile. I tried selecting esp32c6 and WS2812 LEDs v14.4.1 and v14.0.0
• compiling my own image with tasmocompile. For esp32c6 default options and the following custom rule

#define USE_WS2812
#define USE_WS2812_HARDWARE  NEO_HW_P9813
#define USE_WS2812_CTYPE     NEO_RGB 

But I get

/tmp/Tasmota/tasmota/tasmota_xlgt_light/xlgt_01_ws2812_esp32.ino:82:4: error: #error "P9813 is not supported by this library"
   82 |   #error "P9813 is not supported by this library"

What am I missing?

Thanks in advance

[sfromis]

Looking at the code suggests that it was a deliberate choice to not support that combination, when an improved neopixel driver was introduced a couple of months ago.

// We drop support for NEO_HW_P9813, as it is too hard to support with hardwarre
#if (USE_WS2812_HARDWARE == NEO_HW_P9813)
  #error "P9813 is not supported by this library"
#endif  // USE_WS2812_CTYPE

I'd try if it works on an older version from before 2024-11-27

[ffgomez]

Many thanks,

I've tried the 14.3.0 and worked.

Is it suposed to be used differently? Instead selecting P9813_clk/dat select another compatible option. Or will it be removed from the components page?

[sfromis]

Looking again, I see that you can go back to the older driver (which is also used for ESP8266), with a #define in your user_config_override.h. The model is found in my_user_config.h:
#define USE_WS2812_FORCE_NEOPIXELBUS // this option forces to use NeoPixelBus (like ESP866), which disables Berry support and limits features -- DO NOT USE unless you have a good reason