esp-idf/examples/common_components/qrcode
..
include
CMakeLists.txt
README.md
esp_qrcode_main.c
esp_qrcode_wrapper.c
qrcodegen.c
qrcodegen.h

README.md

QR Code generator component

This directory contains a QR code generator component written in C. This component is based on QR-Code-generator. This component is used as part of the following ESP-IDF examples:

To learn more about how to use this component, please check API Documentation from header file qrcode.h.

Please note that this component is not considered to be a part of ESP-IDF stable API. It may change and may be removed in the future releases.