Raspberry & Cie Wireless LED Matrix Display with RaspberryPi, Node-RED, MQTT février 1, 2019 https://www.hackster.io/hubmartin/wireless-led-matrix-display-with-raspberrypi-node-red-mqtt-0f44a8
https://www.hackster.io/hubmartin/wireless-led-matrix-display-with-raspberrypi-node-red-mqtt-0f44a8