Raspberry Pi For Beginners - 2022 Complete Course - Add a New URL and Connect Flask with GPIOs

The video tutorial explains how to set up a web application using Flask to detect the state of a push button connected to a Raspberry Pi via GPIO. It covers URL routing, handling 404 errors, initializing GPIO, and implementing logic to determine if the button is pressed. The application can be accessed from any device on the same network, allowing users to check the button state remotely.

Discuss the importance of returning an empty string when the button is not pressed.

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What is the role of the GPIO setup in the context of this application?

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How can the application be accessed from devices connected to the same network?

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