I've been messing around with accelerometers for Arduino for a school project. I bought the SODIAL GY-521 accelerometer + gyroscope module for Arduino. It uses de Invensense MPU 6050. I managed to connect it onto my board and successfully detect it, but it returns values of -1 on all output ports. I was expecting there to be a port for every axis of acceleration and rotation but it seems that this isn't the case. How should I connect the module into my Arduino, and how should I program the Arduino to read my data?
I tried to follow the Arduino Playground example but the result was as explained above.
Thank you for all answers.