When it comes to LED matrixes, building one is just the first step. Then you have to decide what to display on it. [panjanek] ...

Since I had a spare ESP32 lying around, I tried building a smart dashboard that pulls metrics from the other smart devices in ...

This was developed using a NodeMCU v2 Dev Kit as it conveniently provides a secondary UART for debugging. It has been tested with the ESP-01 shipped with the PixRacer and it is stable at 921600 baud.