How to print QR code generated in the Canvas to thermal printer in MIT APP Inventor 2?

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Is there any reference to include the programming in the Inventor blocks.

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Getting Started - MIT AI2 Concepts - MIT Alexa Messenger tutorial - @Selim_Tezel Android App Inventor DIY Book PDF - Teddy Brask-Andersen App Inventor 2 tutorials at MIT Create your own Android Apps - Wolber, Abelson, Spertus, Looney (Online book) Education, Course Materials - MIT, USF Educational App Development Toolkit for Teachers and Learners - Abeywardena, Ishan S Ferguson archive (inactive) Official guide “Become An App Inventor” is now available - Selim_Tezel Pixii Bomb's video …