I'm late to the thread, but I'm having the same problem. It's a software issue. digitalWrite() to the same port pin as used for the NeoPixel drive toggles the pin as expected. Calling "strip.show() produces... nothing.
ETA: I suspect the NeoPixel library is NOT compatible with the Nano Matter, possibly because interrupts can't be disabled to produce the tight timing required by NeoPixel LEDs.
@scottmk ,
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I agree. Still facing the same issue. Haven’t had the time to dig deeper but I think too there is some kind of incompatibility with this board. Sag, because I want to build some lamps with it…
There is a good chance that is true. First of all though it is a 3.3v device so the output needs to be shifted to 5v.
For non interrupt disabled signal, one can use a UART method
The ezWS2812 header included in the Silicon Labs Matter_Multi_Light example reveals that they're using the SPI port to send ones and zeros to the LED string. I'll build off that.
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