Drive WS2812 / NeoPixel (and SK6812, WS2813/15, and clones) LEDs on the ESP32 using the I2S peripheral for rock-solid timing under load. Multiple parallel strips (one per I2S channel), multicore-safe, configurable color order, RGBW, brightness, HSV/gamma utilities, and both a C++ and a C API.
libsrtp (Cisco) wrapper for ESP-IDF — mbedTLS crypto backend with AES-GCM + AES-CM + HMAC-SHA1. SRTP/SRTCP packet protection for WebRTC and other RTP-based protocols.