How to generate QR code?

 

        Hello, I can commission nrf52840 bulb by iPhone successfully using below QR code:

        https://project-chip.github.io/connectedhomeip/qrcode.html?data=MT%3A6FCJ142C00KA0648G00

        But when I commission the 2nd bulb, it popup "device has been commissioned", so I think I should modify the QR code then commission again.

        Could you tell me how to generate the QR code?

BR

Chuan  

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