Hey guys I'm having a bit or trouble with my gy-521. Every time I connect 5V straight to VCC of the gy-521 my arduino uno quickly turns off. As soon as I remove the gy-521 from the 5V the arduino powers on. My two questions are, why does my arduino turn off when I plug the gy-521 into 5V, and how should I wire up the gy-521.
The GY-521 is a i2C device. When I tried to connect it to the arduino and run the i2C scanner it just kept on saying "Scanning". I have an arduino UNO R3 as well.