@lukasmaximus 在 MicroPython lcd.qrcode is not work 中说： uiflow Thank you for your reply! By your explanation, I understand that there is a difference between the two services. I was thinking of using M5 Cloud Offline to use M5 Stack offline. I usually use Python, so I wanted to use microPython. However, given the richness of the library, I felt it should be implemented with cpp. In the future, if microPython 's functions are enhanced, I would like to try again.