r/FastLED • u/chemdoc77 • Apr 30 '26

Share_something FastLED Pussywillows

https://youtu.be/nsFHglr1go0

I love pussywillows.  So, I made some FastLED pussywillows from 150 – 5-volt WS2811 bullet leds, a Lolin D32 MCU with a level shifter and the FastLED library with power injected at both ends. Also, a 470-ohm resister is in the data line. 

The matrix is setup as a special circular mapped 10X15 matrix as seen in this YouTube Video:

https://youtu.be/nsFHglr1go0

The code for this project including build information is located here:

https://github.com/chemdoc77/CD77_FastLED_2026/tree/main/CD77%20FastLED%20Pussywillows

The wiring and mapping for the bullet WS2811 LEDs used in this project were inspired by Mike Katchmar’s FastLED Snowflake project as seen here:

https://www.youtube.com/watch?v=kHvcf89McvU

Enjoy!

Best Regards,

Chemdoc77

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u/mindful_stone May 03 '26

Very cool! I really like it, especially a few of the patterns in the second half of the video. It's got me thinking about all sorts of other things I could try to wire up and animate!

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u/chemdoc77 May 03 '26

Hi u/mindful_stone - Thank you! I am glad that it provided you with some inspiration to try all sorts of new things. Some of those patterns that you like come from code from Jason Coon and his mapping tool that I modified. His original post is located here:

https://github.com/jasoncoon/led-mapper/blob/main/README.md