PMB Tools is at the heart of several other firmware packages that provide for simple robust and rapid asynchronous IOT development on ESP8266 / ESP32. Firstly it "smooths out" differences in the ...
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.