r/FastLED is a subreddit with 21k members. The most common kinds of discussions are solution requests and pain & anger, and the community frequently discusses led, fastled, esp32, arduino, and strip, and they frequently recommend/review microcontroller.
This community is for users of the FastLED library. A place to discuss and share your addressable LED pixel creations, ask for help, get updates, etc. Help your fellow community artists, makers and engineers out where you can. Remember that everyone has different levels of experience and skill sets. Please be positive and constructive when sharing your knowledge and contributing to discussions.
Popular Themes in r/FastLED
#1
Solution Requests
: "Ws2812b upgrade"
3 posts
#2
Pain & Anger
: "I’m at ultra fest seeing the LED show and compared to what you all make, i am disappointed"
2 posts
#3
Ideas
: "CH32V003 - 10 cents, 4x faster than the Arduino UNO, same SRAM size, 32 bit - Why is no one using this board?!?!"
2 posts
#4
Advice Requests
: "UCS7604 16 bit super LED chipset now in beta"
1 post
#5
Self-Promotion
: "Hello everyone! I want to share my open source USB-C Led Controller. It asks up to 100W from your USB-C charger and can buck on-board to 5V or 12V (Max 20A) according to your type of strips! If you are interested, you can find the link of the github repository in the comment!"
1 post
Popular Topics in r/FastLED
#1
Led
: "The many Leds at Burning Man"
135 posts
#2
Fastled
: "Fastled 3.9.16 Released - WaveSimulation, Advanced layer compositing - and more!"
130 posts
#3
Esp32
: "The Chronospore: My latest project, a fastLED and Esp32 notification light that reminds me to get up from my desk regularly"
40 posts
#4
Arduino
: "FastLED is about to take the #3 spot for the most popular library in Arduino!!"
36 posts
#5
Strip
32 posts
#6
Ws2812b
: "Ws2812b upgrade"
27 posts
#7
Controller
: "I present: My open-source Artnet LED Controller project!"
24 posts
#8
Leds
: "Still needs arms but just added Leds to the new robot "Canny DeVito""
24 posts
#9
Help
21 posts
#10
Power
: "The Power consumption of 12v "Pebble" LEDS"
21 posts
Products Discussed in r/FastLED
Microcontroller
6 reviews
#1
Teensy
4.3★ from 4 reviews
#2
Espressif
4.0★ from 1 review
#3
Adafruit
4.0★ from 1 review
Flair Used in r/FastLED
#1
Share_something
: "Flying Holographic FastLED Display"
85 posts
#2
Announcements
: "FastLED 3.9.16 Released - WaveSimulation, Advanced layer compositing - and more!"
57 posts
#3
Discussion
: "La mia lampada in pietra e resina"
21 posts
#4
Support
: "FastLED 3.9.3 - Beta Release 3 for 4.0.0"
14 posts
#5
Quasi-related
: "I used Codex for the first time"
4 posts
#6
Code_samples
: "I made a lavaless lava lamp with the fastled color palettes"
1 post
Member Growth in r/FastLED
Yearly
+2k members(10.8%)
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About
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Last updated: June 16, 2026