Looking at your code a bit better, I think you're not using the driver correctly... you're supposed to either use uart_driver_install() so you can use all the nice queued read functions etc, or use uart_isr_register() to install your own ISR and handle all hardware things yourself. In your particul...

Hey, it's not quite clear what your screenshot is showing and I don't know the exact issue. I guess it's showing physical devices currently connected to your AP? In that case, the shown device names probably rather identify your devices manufacturers (by MAC address OUI) than hostnames and you won't...

I'm happy to let you know I came up with a solution for our issue :) To avoid early logging and redirect it to UART1 (to some debug-uart pins) but also having the ability to printf to UART0 I did the following: In sdkconfig, I defined: CONFIG_CONSOLE_UART_CUSTOM=y CONFIG_CONSOLE_UART_NUM=1 CONFIG_CO...

Its totally correct that ESP_EARLY_LOGx uses CONFIG_LOG_DEFAULT_LEVEL_DEBUG and not CONFIG_LOG_BOOTLOADER_LEVEL_NONE in that case, because "cpu_start" is handled after 2nd stage bootloader . Compare with the docs: https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/general-notes.html Fi...