Sexy, audio-responsive effects on LED strips.
BTW, if you're using a Teensy 4.x you might be interested in my project.
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My Audio Reactive LED Projects for ESP32/Arduino in C++
1 project | reddit.com/r/FastLED | 19 Sep 2021
Feature Request: "Invisible" LEDs
4 projects | reddit.com/r/FastLED | 7 Aug 2021
Power wiring question
1 project | reddit.com/r/FastLED | 26 Jul 2021
Is FastLed compatible with Teensy 3.x or 4.x?
3 projects | reddit.com/r/Teensy | 23 Jun 2021
Teensy 4.0 serial problem with FastLED
2 projects | reddit.com/r/FastLED | 20 Jun 2021