Hi all, whenever I flash some .UF2 file to FEATHERBOOT, the device reboots but the Neopixel will blaze white and not turn off. This was before and after I flashed the recent bootloader 3.15.0. And I cannot turn it off using the Neopixel library in my sketch. See photo.
Any idea why?
Thank you!
Feather M4 Express: Neopixel blazes after flashing
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- hmilz
- Posts: 40
- Joined: Thu Dec 03, 2020 6:32 am
Feather M4 Express: Neopixel blazes after flashing
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- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: Feather M4 Express: Neopixel blazes after flashing
The Feather M4 has a NEOPIXEL pin (pin 8) you can use the name or number to reference it. Is that what your Arduino code is using? Can you post the code you are running?
- hmilz
- Posts: 40
- Joined: Thu Dec 03, 2020 6:32 am
Re: Feather M4 Express: Neopixel blazes after flashing
Thank you for the reply, but none of my code is involved in the neopixel blazing. This happens immediately after copying _any_ UF2 file to FEATHERBOOT (in this case, with uf2conv.py), apparently before any sketch begins to run.
- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: Feather M4 Express: Neopixel blazes after flashing
I'll try it on my Feather M4 Express.
- mikeysklar
- Posts: 13936
- Joined: Mon Aug 01, 2016 8:10 pm
Re: Feather M4 Express: Neopixel blazes after flashing
I'm unable to reproduce the white light with the standard Adafruit bootloader and images.
What is type of image are you building with the custom UF2's?
What is type of image are you building with the custom UF2's?
Please be positive and constructive with your questions and comments.