Mark Williams

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Viewing 15 posts - 1 through 15 (of 472 total)
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  • #18826
    Mark Williams
    Keymaster

    Are you using a BerryIMU or a BerryGPS-IMU(which includes a GPS)?

    If you are using a BerryGPS-IMU, is it sitting on top of the Raspberry Pi?

    Mark --OzzMaker.com --

    #18823
    Mark Williams
    Keymaster

    That error means that i2c is not enabled on the Pi.  Did you do this? https://ozzmaker.com/i2c/

    Mark --OzzMaker.com --

    #18820
    Mark Williams
    Keymaster

    Thanks for sharing the pictures

    Is it wired correctly?  The PWR LED should be on. To me it looks like it doesn’t even have power. Maybe test using 2 jumper cables and connect 3v and GND, with at least these two connections the LED show turn on

    Mark --OzzMaker.com --

    #18815
    Mark Williams
    Keymaster

    Can you show an image of the 2×5 pin ribbon cable?   this way, i can confirm it is corrected correctly

    Mark --OzzMaker.com --

    #18811
    Mark Williams
    Keymaster

    Yes, it does work on the Pi5

    Do you see anything when you do  “i2cdetect -y 1”

    Mark --OzzMaker.com --

    #18798
    Mark Williams
    Keymaster

    Hi, you can use the QWIIC connector on either side.

    Below is an image of the PCB, which shows the pinout for the QWIIC connectors

    Mark --OzzMaker.com --

    #18797
    Mark Williams
    Keymaster

    Hi, you can use the QWIIC connector on either side.

    Below is an image of the PCB, which shows the pinout for the QWIIC connectors

    Mark --OzzMaker.com --

    #18796
    Mark Williams
    Keymaster

    Hi, can you show us what the garbage looks like?

    Can you also show the output of ‘stty -aF /dev/serial0’

    Mark --OzzMaker.com --

    #18776
    Mark Williams
    Keymaster

    Yes, this is possible.   You would use the compass to measure YAW

    Mark --OzzMaker.com --

    #18773
    Mark Williams
    Keymaster

    Even IMUs on the iPhone create noise, the iPhone is using filters to filter this out. They are a large company and can spend millions of dollars on code to get the best results.

    If you google “smartphone accelerometer noise”, you will get a lot of results which explain this.

    Mark --OzzMaker.com --

    #18758
    Mark Williams
    Keymaster

    Hi, sorry for the late response

    where do you see this message?  “/dev/ttyGSM1: no such file or directory”

    Mark --OzzMaker.com --

    #18728
    Mark Williams
    Keymaster

    Hi… it does indeed look like the BMP388 isnt working.  Have you made any modifications to the PCB?  (E.g. cut tracers).
    The BMP388 is the silver square component.. does it look like there are any problems near it? E.g. a component missing..  Maybe upload a picture.

     

    Mark --OzzMaker.com --

    #18681
    Mark Williams
    Keymaster

    It looks like the GPS cannot be used for PPS when the GPS is streaming to the Cellular module.

    I just tested with using LTE module as the source for time and it works

    AT+UTIME=1,2

    The only difference is that it is not as accurate, 500ns instead of 50ns

     

    Mark --OzzMaker.com --

    #18599
    Mark Williams
    Keymaster

    Hi, i am so sorry you are having issues.

    What web page are you getting the python script from? is it this one?

    Assisted GPS on OzzMaker SARA-R5 LTE-M GPS + 10DOF

    Mark --OzzMaker.com --

    #18570
    Mark Williams
    Keymaster

    this line shows that it looks like you still have the console enabled
    [ 4.862550] printk: console [ttyS0] enabled

     

    Have you done this?

    sudo raspi-config
    Select interfacing options -> Serial -> No -> Yes

     

    And then Yes to reboot

     

    Then, once the Pi is back up use minicome to connect to serial0

    minicom 115200 -D /dev/serial0

    Enter “AT” hit enter and you should get “OK” response

    Mark --OzzMaker.com --

Viewing 15 posts - 1 through 15 (of 472 total)

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