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+--- Thread: Compass/IMU not working with 0.17 alpha (/showthread.php?tid=927)
Compass/IMU not working with 0.17 alpha - Tigress - 2018-01-06
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
RE: Compass/IMU not working with 0.17 alpha - seandepagnier - 2018-01-08
(2018-01-06, 02:51 AM)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?
RE: Compass/IMU not working with 0.17 alpha - Tigress - 2018-01-09
(2018-01-08, 04:29 PM)seandepagnier Wrote: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!(2018-01-06, 02:51 AM)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?
RE: Compass/IMU not working with 0.17 alpha - keithwhite - 2018-01-25
Hi
I'm having a similar problem.
i2c is running when i use the sudo i2cdetect -y 1 command but in openplotter I have to restart the sensors to get any info coming through to SK.
I've checked the config file and ic2 is =on. Is there anything else I should check that might be causing the problem ?
Thanks
Keith
RE: Compass/IMU not working with 0.17 alpha - jim321 - 2018-01-25
you could try a reset in compass tab reboot and recalibrate ..
RE: Compass/IMU not working with 0.17 alpha - Lazzz - 2018-01-27
(2018-01-06, 02:51 AM)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
I have the same problem.
Since updating to 0.17 the compass is no longer working.
Where do I find if dtparam=i2c_arm=on?
My BMP180 sensor isn't working now either.
I also have to manually hit restart to start the DS18B20 sensors & the GPIO switches a well.
RE: Compass/IMU not working with 0.17 alpha - keithwhite - 2018-01-28
(2018-01-25, 12:00 PM)jim321 Wrote: you could try a reset in compass tab reboot and recalibrate ..
Jim
Thanks for the response , I tried turning off , reboot, turning on again and then reboot but still no joy, sometimes they start on their own, its almost as if they are trying to start too early in the boot process and then its hit or miss if they start, maybe they just need a reset at the last moment of openplotter load. Is there a way I can add a command to end of openplotter start ?
Thanks
Keith
RE: Compass/IMU not working with 0.17 alpha - seandepagnier - 2018-01-30
Does "i2cdetect -y 1" always show 0x68?
Can you verify the problem is from 0.17 vs 0.16?
RE: Compass/IMU not working with 0.17 alpha - keithwhite - 2018-01-31
(2018-01-30, 05:33 PM)seandepagnier Wrote: Does "i2cdetect -y 1" always show 0x68?
Can you verify the problem is from 0.17 vs 0.16?
Ok so I've a few cold starts & done a few reboots and its now starting every time so it seems like it was a connection problem.
Thanks for you help
Keith