OpenMarine
[SOLVED] IMU address conflict - Printable Version

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+--- Thread: [SOLVED] IMU address conflict (/showthread.php?tid=1670)



[SOLVED] IMU address conflict - svtgd - 02-08-2019

Today the data from my MPU9250 disappeared. Took a look and see that in I2C tab,  IMU-92xx no longer exists and perhaps has been replaced with MS-560702BA03.  It has address 0x77 - which is same address assigned to my BMP180. Pypilot tab shows IMUs detected:0 - but still has checkboxes selected for imu.heading and pitch, roll.

How to fix?  Undecided


RE: IMU address conflict - jim321 - 02-09-2019

what does this command show

sudo i2cdetect -y 1

was it working before and what have you done to it lately .?
i know bmp-280 works i have never tried the bmp-180.
it is setup to use bmE-280 that has a humidity sensor .
the mpu should be 0x68 or 0x69
this is how mine looks with mpu-9255 and bmp280.
pi@openplotter:~ $ sudo i2cdetect -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: 40 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- 68 -- -- -- -- -- -- --
70: 70 -- -- -- -- -- 76 --


RE: IMU address conflict - svtgd - 02-09-2019

my bad - i had managed to switch wires to scl/sda...  fixed that and MPU9250 now recognized at 0x68 - all good now. Sorry for the false alarm and thanks for the help jim321.