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Xose Pérez @ tinkerman.cat build a MQTT LED matrix display to get notification messages.
My MQTT network at home moves up and down a lot of messages: sensor values, triggers, notifications, device statuses,… I use Node-RED to forward the important ones to PushOver and some others to a Blynk application. But I also happen to have an LED display at home and that means FUN.
64×16 MQTT LED Matrix Display – [Link]
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