You use this library whenever you want to talk to:

Here is everything you need to know about the Wire library and how to access it instantly.

Beginners who think they need to find a GitHub link or ZIP file to get I2C working.

He clicked the first link. A forum post. “Just use the Library Manager,” said a user named ‘Skippy99’.

: Search for your board type (e.g., "Arduino AVR Boards"). If an Update button is visible, clicking it will ensure you have the latest version of the Wire library for that hardware.

delay(5000); // Scan every 5 seconds