Error: Weird behavior in the sensehat

[PetriJF]

Hello everyone

I am using a sense hat for one of my projects and I am getting some weird behavior. Up until yesterday everything was fine, but today the LED matrix flashed a quick white blink then changes to the rainbow until the raspberry pi boots up into ubuntu 22,04 completely. Afterwards, it just turns off.

I thought it was weird and tried running some code. I received this error:
OSError: IMU Init Failed

I did an i2cdetect and this is what I get (Note that on 41 and 42 I have 2 other devices)

 0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f

00: -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- UU -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- 41 42 -- -- -- UU -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- UU -- -- 5f
60: -- -- -- -- -- -- -- -- -- -- 6a -- -- -- -- --
70: 70 -- -- -- -- -- -- --

I checked ls -l /dev/i2c-1 and it gives:
crw-rw---- 1 root dialout 89, 1 Sep 9 21:49 /dev/i2c-1

I tried sudo nano /boot/config.txt and added dtoverlay=rpi-sense to it.

Would anyone happen to know what could be causing the problem?

Thank you for your time!

[bsimmo]

I don't know yet, but for diagnostics of the HAT itself Grab the latest RPi OS and try it with that. It's the only one RPi themselves support and it should work on there. Which SenseHAT version 1 or 2? And which Pi? Check your power (undervoltage) Take the HAT one and of the Pi a few times (connections). Had Ubuntu just updated itself?

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On Wed, 15 Feb 2023, 11:54 pm PetriJF, ***@***.***> wrote: Hello everyone I am using a sense hat for one of my projects and I am getting some weird behavior. Up until yesterday everything was fine, but today the LED matrix flashed a quick white blink then changes to the rainbow until the raspberry pi boots up into ubuntu 22,04 completely. Afterwards, it just turns off. I thought it was weird and tried running some code. I received this error: OSError: IMU Init Failed I did an i2cdetect and this is what I get (Note that on 41 and 42 I have 2 other devices) 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- UU -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: -- 41 42 -- -- -- UU -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- UU -- -- 5f 60: -- -- -- -- -- -- -- -- -- -- 6a -- -- -- -- -- 70: 70 -- -- -- -- -- -- -- I checked ls -l /dev/i2c-1 and it gives: crw-rw---- 1 root dialout 89, 1 Sep 9 21:49 /dev/i2c-1 I tried sudo nano /boot/config.txt and added dtoverlay=rpi-sense to it. Would anyone happen to know what could be causing the problem? Thank you for your time! — Reply to this email directly, view it on GitHub <#136>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACYAXN4LJHXLBBW6IO6BV3LWXVUFFANCNFSM6AAAAAAU5PLNR4> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[bsimmo]

Try support in the RPi support forum https://forums.raspberrypi.com/viewforum.php?f=104

…

On Wed, 15 Feb 2023, 11:54 pm PetriJF, ***@***.***> wrote: Hello everyone I am using a sense hat for one of my projects and I am getting some weird behavior. Up until yesterday everything was fine, but today the LED matrix flashed a quick white blink then changes to the rainbow until the raspberry pi boots up into ubuntu 22,04 completely. Afterwards, it just turns off. I thought it was weird and tried running some code. I received this error: OSError: IMU Init Failed I did an i2cdetect and this is what I get (Note that on 41 and 42 I have 2 other devices) 0 1 2 3 4 5 6 7 8 9 a b c d e f 00: -- -- -- -- -- -- -- -- 10: -- -- -- -- -- -- -- -- -- -- -- -- UU -- -- -- 20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 40: -- 41 42 -- -- -- UU -- -- -- -- -- -- -- -- -- 50: -- -- -- -- -- -- -- -- -- -- -- -- UU -- -- 5f 60: -- -- -- -- -- -- -- -- -- -- 6a -- -- -- -- -- 70: 70 -- -- -- -- -- -- -- I checked ls -l /dev/i2c-1 and it gives: crw-rw---- 1 root dialout 89, 1 Sep 9 21:49 /dev/i2c-1 I tried sudo nano /boot/config.txt and added dtoverlay=rpi-sense to it. Would anyone happen to know what could be causing the problem? Thank you for your time! — Reply to this email directly, view it on GitHub <#136>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ACYAXN4LJHXLBBW6IO6BV3LWXVUFFANCNFSM6AAAAAAU5PLNR4> . You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[PetriJF]

Hello!

Thank you for your response! I am using the raspberry pi 4b with the version 1.0 sensehat from 2015. I will try the forum as well.

[PetriJF]

Regarding voltages, they are slightly higher at 3.8 and 5.9.
Would that cause the problem?