Keep Up to Date with the Most Important News

By pressing the Subscribe button, you confirm that you are agreeing to our Privacy Policy.

If your compiler is throwing an error saying fatal error: Wire.h: No such file or directory , it is almost never because the file is missing from the internet. It is usually one of three problems:

If you want to view the source code or manually verify its existence: Arduino IDE and Wire.h?

Since the library is a core file, the most reliable way to fix a missing is to perform a clean installation of the latest Arduino IDE Manual Retrieval (Advanced):