I am using Jeff Rowberg's code for reading my MPU6050 and have had no problem reading values and using the associated Processing file that he provided. My problem is that I'm able to do this on one SainSmart manufactured mpu6050 sensor that I ordered a while ago and not on the two new Kootek sensors.
I'm following all of the instructions closely and am puzzled as to why I'm so stumped by these similar sensors. I believe my soldering is fine and I'm getting the power to the sensor just fine, however, the serial monitor indicates, "connection failed" at startup. I have tried adding resistors, playing with the I2C address, etc. Other codes that I have run (Odis Harkins, Arduino playground - mpu6050 sample code) confirm that there is a connection error.
What might I be missing?
My connections are the following: 5V --> VCC SCL --> A5 SDA --> A4 GND --> GND (ADO --> GND) tried with and without INT --> D2
Again, I can get all of this source code to work perfectly with my other mpu, but not the two new Kootek GY521. Any help will be greatly appreciated.
Thank you for your time.