ESP32 and peripherals (RMT, I2S)

This page summarizes the projects mentioned and recommended in the original post on /r/FastLED
hardware-timers servo-controller isr millis Arduino

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  • ESP32_ISR_Servo

    Discontinued This library enables you to use 1 Hardware Timer on ESP32-based board to control 16 or more servo motors. Now supporting ESP32, ESP32_S2, ESP32_S3, ESP32_C3-based boards. Tested OK with ESP32 core v2.0.5

    • Hello, I am trying to use FastLED with an interrupt-driven servo library, but the servo seems to jitter whenever the LED is showing any color except black (i.e. fully off). This leads me to believe that it's being bit-banged, and I'm not even sure how to check if FastLED is using any hardware peripherals like RMT or I2S. The jitter still happens when using #define FASTLED_RMT_MAX_CHANNELS 1, and I always get this warning during compilation, which might be relevant:

  • FastLED

    The FastLED library for colored LED animation on Arduino. Please direct questions/requests for help to the FastLED Reddit community: http://fastled.io/r We'd like to use github "issues" just for tracking library bugs / enhancements.

    • I have begun work on making FastLED I2S code work with the ESP32S2, it now compiles, but doesn't work. https://github.com/FastLED/FastLED/issues/1422

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NOTE: The number of mentions on this list indicates mentions on common posts plus user suggested alternatives. Hence, a higher number means a more popular project.

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