When powered up, the ESP sends a bunch of information out to the USB port via UART0, which is connected to the Serial/USB bridge chip. On this particular board, the designers chose to put an LED on the TXD line of UART0, I suppose to let the user know when the ESP32 is sending data. This was confirm...

Thank-you for the awesome answer. Very much appreciated. Have a great one .

Can anyone explain, for the RMT peripheral, what the function:

rmt_translator_set_context()

does?

1. It is needed to transmit data using the RMT controller?
2. How does it interact with the other RMT functions and structures?

Many thanks.

Seeking clarification on which GPIO pins to use for CS lines when multiple devices are connected to an SPI bus using the SPI Master driver. From this page in the docs: https://docs.espressif.com/projects/esp-idf/en/v3.3.6/api-reference/peripherals/spi_master.html#_CPPv417spi_host_device_t It states:...

Ah. There you go. Running the basic Blink program driving IO1 does indeed control the LED.

Of course that makes the serial monitor port kinda useless... Unless I flash the LED at 115200 baud !

Thanks Felix.

I've picked up a number of 38 pin ESP32 dev boards from AliExpress & Amazon. The physical layout of the boards are identical. Near the header pin marked G2, there is a single red LED. Does anyone know, is this LED connected to a GPIO pin and if so, which one? The LED flickers initially during power-...

Appreciate the help. Thanks. Running through the "Get Started" steps at: https://docs.espressif.com/projects/esp-idf/en/v4.3.1/esp32/get-started/index.html#step-4-set-up-the-environment-variables At Step 8 Build the Project, after running: ~/esp/hello_world % idf.py build things proceeded until the ...

Many thanks Roland. The reply is appreciated. unset python didn't work, had to unalias python to make it go. As background, before installing ESP-IDF, python3 was installed using Homebrew -- a fairly common method. Homebrew sets a few alias' as part of that install. Wondering -- since the export.sh ...

Trying to install the ESP-IDF on macOS Big Sur Version 11.6.1 (20G224) Following the instructions at: https://docs.espressif.com/projects/esp-idf/en/v4.3.1/esp32/get-started/index.html At Step 4, seems to be a path error that is not resolved by the export.sh script. The install.sh script runs fine, ...

@lbernstone Will the latest v 2.0.0 arduino-esp32 install under Arduino IDE v1.8.15? Launching Arduino IDE v1.8.15 and going to the Boards Manager does not show the v2.0.0 release. Launching Arduino IDE 2.0.0-beta.11 and going to the Boards Manager, the v 2.0.0 release is there. Tweak needed to the ...