Interpreting the Raw readings from mpu 9250

By jayu008 , 16 March 2017

I am using MPU 9250 with the TI controller CC430F5137 using I2C bus.

Tested the bus is working properly by reading the Whoami reg.

Below are some readings which i got need to understand that why the reading are not constant when the device is stable.
Variation are there for every sensor but the readings are not constant.

Reading are.:

ax = -908 ay = -284 az = 15100
gx = 34 gy = -63 gz = 76
mx = 16 my = 86 mz = -78

ax = -928 ay = -272 az = 14948
gx = 49 gy = -81 gz = 89
mx = 19 my = 89 mz = -47

ax = -864 ay = -312 az = 14856
gx = 52 gy = -84 gz = 96
mx = 18 my = 96 mz = -56

ax = -940 ay = -300 az = 14956
gx = 75 gy = -87 gz = 110
mx = 16 my = 94 mz = -64

ax = -896 ay = -308 az = 14932
gx = 71 gy = -94 gz = 108
mx = 20 my = 90 mz = -62

ax = -848 ay = -324 az = 14888
gx = 76 gy = -70 gz = 95
mx = 14 my = 92 mz = -62

ax = -928 ay = -348 az = 14844
gx = 87 gy = -111 gz = 63
mx = 18 my = 94 mz = -80

ax = -856 ay = -360 az = 14996
gx = 76 gy = -90 gz = 101
mx = 18 my = 90 mz = -60

ax = -868 ay = -284 az = 14916
gx = 66 gy = -105 gz = 101
mx = 13 my = 87 mz = -73

1) how to interpret the reading ?
2) how to convert this reading in the proper understandable from i.e Acceleration in specific direction, compass in degrees, etc.?

Waiting for the response

phpbb Topic ID
36275