Lightweight framebuffer drawing utility for AI annotation overlays. Supports text, rectangles, lines, point markers, and detection boxes in RGB565/RGB888 with built-in bitmap fonts.
Multi-protocol LED strip controller for ESP32 with RGB and RGBW support. Supports WS2812, WS2812B, SK6812, APA104, APA102, SK9822, LPD8806, and WS2801.
Timestamp service for ESP32 that works without a dedicated RTC module. Starts from build time on every boot, then corrects via SNTP sync or manual set — whichever suits the application. All corrections are explicit and observable via jump callbacks, safe for logging systems.