Raspberry Pi For Beginners - 2022 Complete Course - Activity 11 - Choose Which LED to Power On from a Web Browser

This tutorial guides you through creating a web application on a Raspberry Pi using Flask and GPIO. It covers setting up a basic Flask app, defining URL structures for controlling LEDs, and writing a function to handle LED pin and state parameters. The video concludes with a challenge to initialize and validate LED pins, ensuring they are set to GPIO output and validating user input against a predefined list of pins.

What are the initial states of the LED pins when setting them up?

How do you validate the LED pin and state in the application?