• 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Compass/IMU not working with 0.17 alpha
#1
Hello, not sure if others have seen or reported this, but after upgrading to 0.17 alpha this afternoon (1500 PST) the compass/IMU (InvenSense MPU-9255) I have used successfully for several previous versions appears to no longer be working. I have restarted the sensors and rebooted several times, but no joy. Also, the "Detected IMU" message appears whether or not I have the sensor connected...not sure if this is a symptom. To my knowledge I have not upgraded or changed anything else on the RPI 3 Model B V1.2. Any thoughts?

UPDATE: Just ran "sudo i2cdetect -y 1" and got only rows of "-- -- --"; no 68 hex address found. Is there an i2c setting I need to tweak to ensure the sensor will be detected by OP? Checked and recheck wiring to sensor...seems solid. Thanks.

Drew
  Reply
#2
(01-05-2018, 09:51 PM)Tigress Wrote: Hello, not sure if others have seen or reported this, but after upgrading to 0.17 alpha this afternoon (1500 PST) the compass/IMU (InvenSense MPU-9255) I have used successfully for several previous versions appears to no longer be working. I have restarted the sensors and rebooted several times, but no joy. Also, the "Detected IMU" message appears whether or not I have the sensor connected...not sure if this is a symptom. To my knowledge I have not upgraded or changed anything else on the RPI 3 Model B V1.2. Any thoughts?

UPDATE: Just ran "sudo i2cdetect -y 1" and got only rows of "-- -- --"; no 68 hex address found. Is there an i2c setting I need to tweak to ensure the sensor will be detected by OP? Checked and recheck wiring to sensor...seems solid. Thanks.

Drew

If you use version 0.16 does i2cdetect work? What about your config.txt, does it have dtparam=i2c_arm=on?
  Reply
#3
(01-08-2018, 11:29 AM)seandepagnier Wrote:
(01-05-2018, 09:51 PM)Tigress Wrote: Hello, not sure if others have seen or reported this, but after upgrading to 0.17 alpha this afternoon (1500 PST) the compass/IMU (InvenSense MPU-9255) I have used successfully for several previous versions appears to no longer be working. I have restarted the sensors and rebooted several times, but no joy. Also, the "Detected IMU" message appears whether or not I have the sensor connected...not sure if this is a symptom. To my knowledge I have not upgraded or changed anything else on the RPI 3 Model B V1.2. Any thoughts?

UPDATE: Just ran "sudo i2cdetect -y 1" and got only rows of "-- -- --"; no 68 hex address found. Is there an i2c setting I need to tweak to ensure the sensor will be detected  by OP? Checked and recheck wiring to sensor...seems solid. Thanks.

Drew

If you use version 0.16 does i2cdetect work?   What about your config.txt, does it have dtparam=i2c_arm=on?
Hi...yes, i2cdetect did work with 0.16. On my 0.17 system I found that dtparam=i2c_arm=off for some reason. Easily fixed, sensor now working successfully as before. Thanks for your help!
  Reply


Forum Jump:


Users browsing this thread: 1 Guest(s)