A Windows Form application that displays GY-521 module data.

Current version displays yaw, pitch, roll degrees.

GY-521 Arduino UNO board circuit:

VCC - 3.3V

GND - GND

SCL - A5

SDA - A4

INI - D2

Arduino code used for GY-521: https://github.com/jrowberg/i2cdevlib/tree/master/Arduino/MPU6050

Baud rate 9600 always works for me :-)