many thanks ESP_Sprite! I got it working on linux with the example code at: https://github.com/espressif/esp-idf/blob/master/examples/peripherals/uart/uart_echo/main/uart_echo_example_main.c changing UART_1 to UART_0, as well as the pin numbers. (took me ages to realize I had to turn off hardware co...

Dear Forum, newbie question: it is possible for an ESP32 program to receive serial text/data via the usb cable/connector used to flash it? I thought this might be possible as when using the Arduino IDE this is possible with serial.read etc. using the serial monitor. I have only managed to find infor...