If you could explain where or how to do just that, I will try it,

Meanwhile, I found out about esptool and downloaded the firmware from a virgin board ( I bought 3 ) and reflashed the broken board and it ran again.

All of that, I'd still like to know how to do it the proper way.

I purchased 3 of these units all with an RGB demo on them. After flashing the demo Blink from the IDF examples, it stopped blinking. Why? I measured pin 2 of the LED, data in, and it connected to pin 18 (left) which is GPIO 12, not GPIO 18. Checking one of the other "virgin" boards, pin 2 also goes ...

I Cannot compile code from ESP32-S2 to a ESP32-S3 without erroring. One line in an include h: SET_PERI_REG_BITS( SPI_MOSI_DLEN_REG(sel_SPI), gives no error on the S2. But on the S3 it errors as follows: 'SPI_MOSI_DLEN_REG' was not declared in this scope I'm new to this and I do not know what could h...