Raspberry Pi Pico with 24 neopixel ring
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- enauman
- Posts: 17
- Joined: Sat Dec 26, 2020 12:16 am
Raspberry Pi Pico with 24 neopixel ring
I'm following the Adafruit guide to using neopixels with a Raspberry Pi Pico board and having very inconsistent performance. I'm just doing simple things like filling with different colors and changing brightness and more often than not only one neopixel will light up, sometimes several light up but random colors, and sometimes they all light up properly. I've tried different boards and different neopixel rings with the same results.
- dastels
- Posts: 15653
- Joined: Tue Oct 20, 2015 3:22 pm
Re: Raspberry Pi Pico with 24 neopixel ring
It strikes me as odd that the NeoPixels are powered by 5v when the Pico uses 3.3v logic levels. Have you tried powering the ring from 3.3v? Or using a level shifter as described at https://learn.adafruit.com/adafruit-neo ... ogic-level.
Dave
Dave
- enauman
- Posts: 17
- Joined: Sat Dec 26, 2020 12:16 am
Re: Raspberry Pi Pico with 24 neopixel ring
Awesome, the neopixel works properly on 3.3V. Thank you!
Please be positive and constructive with your questions and comments.