IMUTestArduino FAIL

sos

#1

Hello.
I tried to test IMU/Compass/Depth Module using Arduino Uno R3.
I used sample program “IMUTestArduino.ino”.(https://github.com/OpenROV/openrov-electronics/tree/master/OpenROV%20IMU%20Tester/IMUTestArduino)

When I run “IMUTestArduino.ino”, Arduino Serial monitor said following message.


Program start
Device is reset
mpu_init failed with code: -1
Pressure in psi is: -11.01

Second-order offsets are:
0.92
11158.33
0.00
First-Order Temperature in Degrees C is 24.23
Second-Order Temperature in Degrees C is 24.22
Temp: 24.23

Test results
IMU : FAIL
DEPTH: FAIL
TEMP : PASS

Test complete, press any key to retest or use hardware soft reset button.
Program start
Device is reset
mpu_init failed with code: -1
Pressure in psi is: -11.04

TEMP is PASS, but IMU and DEPTH are FAIL.

Next, I tried to run I2C scanner.
(http://playground.arduino.cc/Main/I2cScanner)
I2C device found. (following meassage)


Scanning…
I2C device found at address 0x28 !
I2C device found at address 0x76 !
done

I2C device found, but I can’t get IMU and DEPTH data.
What shold I do to get IMU and DEPTH data ?
Please tell me.