Raspberry Pi and Arduino - Go to The Next Level - Step 3 (Arduino) - Write to Serial when Button Is Pressed

The video tutorial covers setting up an intercom system using Arduino and Raspberry Pi. It begins with initializing hardware components and saving progress. The tutorial then focuses on writing code for a button, including setting up variables and implementing a debounce mechanism. It also covers setting up serial communication between Arduino and Raspberry Pi. Finally, the tutorial concludes with testing the setup to ensure the button press is correctly detected and communicated.

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