Meshtastic Scrolling Meshtastic Messages on an 8x32 WS2812B LED Panel: Custom Firmware, MQTT, and the Decryption Part Nobody Explains A custom ESP32 build that subscribes to Meshtastic's encrypted MQTT topic, decrypts packets on the fly, and scrolls messages across a WS2812B 8x32 LED panel. Full build guide: parts, wiring, PlatformIO flashing from scratch, and MQTT setup.