esp_qrcode_generate() function

Encodes the given string into a QR Code and calls the display function @attention 1. Can successfully encode a UTF-8 string of up to 2953 bytes or an alphanumeric string of up to 4296 characters or any digit string of up to 7089 characters

Syntax

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Summary

Declaration

Definition

from qrcode.h:53

esp_err_t esp_qrcode_generate(esp_qrcode_config_t *cfg, const char *text);

Implemented in esp_qrcode_main.c:63

Arguments

Argument

Description

cfg

Configuration used for QR Code encoding.

text

String to encode into a QR Code.

Return value

- ESP_OK: succeed - ESP_FAIL: Failed to encode string into a QR Code - ESP_ERR_NO_MEM: Failed to allocate buffer for given max_qrcode_version

Examples

References

from examples

esp_qrcode_generate() function

Syntax

Arguments

Return value

Examples

References

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