MPU-9250 not detected

[mgrouch]

Hi

I'm discouraged it's been several years that I use imu 9250 and it always worked well. I am redoing a plotter with brand new Rasberry pi. I installed 2020-12-16-OpenPlotter-v2-Starting-img.

Pypilot does not detect the mpu9250. I have several (4) new ones in hand, I have tried them all. I2cdetect = 068 .
I reinstalled RTIMULib2. Nothing to do no detection. I put 3.3volt on ad0 for address 69 nothing. i2cdetect: bcm2835 (i2c@7e804000). I am a computer engineer and I spent 2 days trying to solve this enigma.

I installed the RTIMULib2 and I followed the instructions and modified all the configuration files.

RTIMULibCal - using RTIMULib.ini
Settings file RTIMULib.ini loaded
Failed to open SPI bus 0, select 0
No IMU detected
Using fusion algorithm RTQF
No IMU found
However the spi interface is on.


Pierre

Have you tried installing BBN OS instead of old openplotter?
It’s also free and open source and works on raspberry pi4. 

https://bareboat-necessities.github.io/m...at-os.html