This is a simple sketch that has the following functionality:
1-Waits for the user to input a string (max of 216 characters) through the Serial Monitor
2-Builds the corresponding QRCode by sending an API request, through the Internet, to www.esponce.com.
3-The response is shown as “text” on the Serial Monitor and as a readable QRCode on the display.
Hope it helps…
QRduino.zip (3.69 KB)