esp-qrcode

Library for ESP-OPEN-RTOS for QR code generation.

char myData[] = "http://example.com";

QRCode qrcode;

uint8_t *qrcodeBytes = malloc(qrcode_getBufferSize(QRCODE_VERSION));
qrcode_initText(&qrcode, qrcodeBytes, QRCODE_VERSION, ECC_MEDIUM, myData);

qrcode_print(&qrcode);  // print on console

free(qrcodeBytes);

License

MIT licensed. See the bundled LICENSE file for more details.