UART don't work on a ESP32 C Super Mini Board

[MJU20]

In another topic, someone asked me to test something on a different board then which I was using.
The first one I found was a ESP32 C3 Super Mini board:



When I view the booting on a serial monitor I can follow the booting of this board, but when I try and install a UART component, I get no reply
I used the UART (RS232) component and the UART software timer component.
Both don't get the UART send messages to the serial monitor.

I initialise the UART and send a string, but this is never received whatever baudrate I choose.
Any ideas? I use channel 1 and this uses the RX/TX pins like on the pic above..

[mnfisher]

Not all boards seem to have the UART connected to the USB port. Test using a usb to uart (ftdi) converter connected to d0/d1.

As the debug info is being output then it may be possible to select the same pins for one of the user channels.

Martin

[MJU20]

Thank you Martin,

I found out that the pins connected to the USB are GPIO pins 18/19.



But when I try to port the UART to these pins I can't flash my program to the device.