Electronics Ten Games, One LED Panel, and a Radio That Would Not Share I bought a 16x16 LED matrix for no reason, left it in a drawer for a year, then turned it into a ten-game arcade driven by a controller Google abandoned. Here is how it came together, including the bug that cost me an evening.
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.
