No humidity and no IMU sensor reported

No humidity and no IMU sensor reported - Printable Version

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No humidity and no IMU sensor reported - Arruba - 2017-11-16

I have a MPU-9255 and a BME280 connected to I2C and in the I2C tab I can see the humidity sensor.
The MPU is not present in Compass tab (Detected IMU: empty).
Openplotter in debug mode tell me
No IMU detected
No humidity sensor detected

There is a way (another program or action via terminal) I can test my sensors?
Or it is a know software fault?

Thank you
Roberto

====
Openplotter 0.16.0 beta
Raspberry PI 3
Connected devices:
Keyboard, mouse, Eth, USB GPS, monitor

RE: No humidity and no IMU sensor reported - jim321 - 2017-11-17

i have a BME280 also it always shows humidity as 0 ..i don't think it reads it or i got some epoxy on it.. it doesn't really matter to me as i should always be in 90% to 100 % anyways..

try this to see if i2c is detectid on the pi in the terminal.
sudo i2cdetect -y 1

RE: No humidity and no IMU sensor reported - Arruba - 2017-11-17

Thank you.

RE: No humidity and no IMU sensor reported - Sailoog - 2017-11-19

This should be a bad connection, any progress on this?

RE: No humidity and no IMU sensor reported - Arruba - 2017-11-19

No, any progress. Tomorrow I can run the "sudo i2cdetect -y 1" and I'll report the answer.
In the past days I have reconnected the 2 I2C devices but no difference.

ciao
roberto

RE: No humidity and no IMU sensor reported - jim321 - 2017-11-20

bmp280 has no humidity bme280 does.

RE: No humidity and no IMU sensor reported - Arruba - 2017-11-20

Oh, my fault. I have BMP280, and was under impression that it has also umidity.
Thank you!
Now I have to discover why MPU-9255 is not seen: sensor broken? How can I test it?
i2cdetect report only a sensor ad address 76, which is the one of bmp280...

Roberto

RE: No humidity and no IMU sensor reported - Sailoog - 2017-11-29

You should see address 0x68 for mpu9255

check your soldering and connection.

I will send this thread to "How do I?" forum to keep clean the bugs forum

RE: No humidity and no IMU sensor reported - Arruba - 2017-11-29

Thank you.
Perhaps a broken sensor... I tryied connecting to SPI and look as some value are read. As soon as I can I’ll try with another sensor working for shure.

RE: No humidity and no IMU sensor reported - s99kalle - 2017-12-22

I am having the same problem. Compass sensor from Sailoog; MPU-9255 connected via Sensors HAT.
I am absolutely new to this...

When running sudo i2cdetect -y 1 i get this:

That seems to indicate that the Raspberry Pi detetcts the MPU?

In Openplotter I get this:

Am I doing something wrong?
Any ideas are appreciated!