I am trying to talk to an MPU9150 sensor on a breakout board with 2K2 pullups that I have successfully used many times before so I know it works. I hooked up 3V3 and GND from the Edison Arduino breakout board and the MPU9150 LED indicator comes on. So far so good. Then I hooked up SDA/SCL from the Edison Arduino breakout board digital pin header to SDA/SCL on the MPU9150 breakout board and... I can detect no I2C device. I compiled and transferred to the Edison an Arduino sketch that works on an Arduino Pro Mini and Teensy to talk to the MPU9150 but there is no I2C commo. I ran through all possible I2C addresses and the Edison claims through the serial port that there are no I2C devices! I am starting to pull my hair out... I am using the Wire,h library. What simple thing an I overlooking here? I could find no example of setting up I2C commo for the Edison using the Arduino breakout board. If not the usual way, then how is this feat accomplished? Thanks!
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