Hi geeks, I would like to create simple LED matrix build of 16(8x2) MAX7219 boards managed by MQTT over WiFi. I've tried to build it on NodeMCU board. (edit: it is Wemos D1 mini) If I use MAX7219 only, everything works good. If I use wifi + MQTT only, everything works great. But, when I try to…

Wemos D1 - wifi plus MAX7219 64x16

macrek November 18, 2021, 7:41am 5

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