Arduino for Beginners - 2022 Complete Course - Step 3 - Lock the Application When an Obstacle Is Detected

The video tutorial explains how to implement a locking mechanism in a robot application using an ultrasonic sensor. It covers setting up a boolean flag to lock the application when an obstacle is detected within a certain distance. The tutorial details creating a function to manage the lock state and modify LED behavior to indicate the lock status. The code is tested to ensure the LEDs blink in unison when locked, providing a visual warning. The tutorial emphasizes the importance of manual intervention to unlock the application.

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