qrcode- QR Code Display

Feature introduction: generate a corresponding QR code according to the input content.

Display QR Code

qrcode.show

qrcode.show(qrcode_str,magnification,start_x,start_y,Background_color,Foreground_color)

Displays QR codes to LCD.

Parameter：

• qrcode_str - String type. QR code content.
• magnification - Integer type. Magnification. Range: 1–6.
• start_x - Integer type. The start x coordinate of the displayed QR code.
• start_y - Integer type. The start y coordinate of the displayed QR code.
• Background_color - Integer type. Background color. Default value: 0xffff.
• Foreground_color - Integer type. Foreground color. Default value: 0x0000.

Return Value

0 - Successful execution

-1 - QR code generation failed

-2 - Magnification failed

-3 - Display failed