Hi! What do you mean by "fails"? How exactly? Do the pcf8574_...() functions return error codes? Which? I suggest you write a simple program that uses a camera and pcf8574 and reproduce the error. Then create an issue in my repository ( https://github.com/UncleRus/esp-idf-lib ), post the source of t...

Thanks for the kind words.

I will be happy to participate in the development of the component registry for the ESP-IDF.
ESP_Minatel, of course, let's talk privately. We can use private messages on this forum or you can write to my email: unclerus<at>gmail.com

Hi! I have a few ESP-IDF components (for example, the popular https://github.com/UncleRus/esp-idf-lib collection) and would like to upload them to the Espressif Component Registry. In this regard, there are a number of questions: - Is there a detailed instruction for creating an idf_component.yml ma...

Write this function yourself, it's simple. First of all, write something like this to average measurements: esp_err_t hx711_read_average(hx711_t *dev, size_t times, bool rate, int32_t *data) { int32_t v; *data = 0; for (size_t i = 0; i < times; i++) { esp_err_t res = hx711_read_data(dev, &v); if (re...

HMC5883 and QMC5883 has different register addresses.
Both chips are supported in esp-idf-lib: https://github.com/UncleRus/esp-idf-lib

Here is ESP-IDF driver for HX711: https://github.com/UncleRus/esp-idf-lib