Due I2C not working

Hardware Arduino Due
29

I had the same problem with the GY-521.

Use the fix also worked for me.

Specifically:

Download:

https://raw.githubusercontent.com/bluesign2k/Arduino/d8d6d62853a5308c21b95dad4bdd64e358e857cc/hardware/arduino/sam/libraries/Wire/Wire.cpp

And overwrite in your arduino installation: hardware/arduino/sam/libraries/Wire/Wire.cpp

For me, this just fixed i2c.