Another highlight, in my opinion, is remarkable stability of intermediate updates up to and including latest ESP-IDF 2.0 rc1.

I do not hesitate and download updates as they are available on GitHub. If something happens, then responsiveness to issues reported on GitHub is excellent.

On https://dl.espressif.com/dl/schematics/ ... _SCH-2.pdf schematic +5V GPIO pull up resistors are marked as "10K(1%)(NC)" and in green font.
There are couple of other resistors (including 0 oHm) marked with NC and green.
They are not not connected / not populated on my board as well.

../esp-idf/components/esp32/./system_api.c:38: undefined reference to `esp_wifi_stop'

I have noticed exactly the same error when compiling sd_card example.

This example is not using Wi-Fi at all.
To resolve this error I have disabled Wi-Fi in menuconfig.

in my ideal world we would see a compilation error of the form "Attempt to use <XYZ> function but that function is disabled." I agree - this would be ideal. In the meantime I think that another takeaway from this case is to watch for sdkconfig.defaults file that developers add to some examples. It ...

@ESP_Sprite https://dl.espressif.com/dl/xtensa-esp3 ... 2.0.tar.gz is broken.

Hi RSchlenker,

Have you checked https://www.adafruit.com/product/3320 ?
In EU https://www.olimex.com/Products/IoT/ESP32-WROOM-32/

Hi kolban, I have similar observations. Every other time, upon cloning new esp-idf release, I delete existing sdkconfig & sdkconfig.old files and generate new from scratch. If I see issues then use tools like http://winmerge.org/ to quickly identify differences in configuration. Expanding on your po...

@a2retro,
Try this one:
https://github.com/espressif/esp-idf/issues/205

Hi a2retro,
To fix back-light check http://www.esp32.com/viewtopic.php?f=17&t=325#p3823 by rudi.

Hi rudi, I have not been using OV7670 with or without LCD. Checking briefly to the data sheet OV7670, it looks similar to OV7725. I would start by checking if register settings in default_regs[][2] in file ov7725.c match what is required to set up OV7670. Also, as mentioned by erhardd, to push the d...