Finally figured out how to connect Witty ESP8266 to the board and keep serial connection to computer on. Still couldn’t understand why serial port on the board itself is not working.
I’m having a few of them go full blue on me lately. It’s a bit annoying.
@Richard_Vowles Then you need to erase the flash with Esptool (command line) or upload the largest sketch that you can find.
There is some old code in memory that is not beeing overwritten and your new sketch thinks it’s part of it.
Ah, ok, I was just erasing them and over writing them. I can certainly try that, thanks!