BerryGPS-IMUv3 is ublox i2c not on the i2c pins for raspberry pi?

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  • #13139
    johnsom
    Participant

    I recently purchased the BerryGPS-IMUv3. I have soldered it up and got it going on a Raspberry Pi 3.

    The UART/serial interfaces are working fine, PPS as I have wired it up looks ok too.

    I just don’t see the ublox I2C chip on the bus, only the IMU.

    i2cdetect:

    0 1 2 3 4 5 6 7 8 9 a b c d e f
    00: — — — — — — — — — — — — —
    10: — — — — — — — — — — — — 1c — — —
    20: — — — — — — — — — — — — — — — —
    30: — — — — — — — — — — — — — — — —
    40: — — — — — — — — — — — — — — — —
    50: — — — — — — — — — — — — — — — —
    60: — — — — — — — — — — 6a — — — — —
    70: — — — — — — — 77

    Is the ublox i2c not wired up to the i2c bus on the board?

    Do I need to jumper in the ublox SCL and SDA into the upper pins to get access to that interface?

    I need both the UART and the I2C ports (with different messages) for a project.

    Thanks,

    johnsom

    #13141
    PeterP
    Participant

    Hi Johnsom
    We haven’t connected the uBlox i2c pins to the i2c bus, but we have broken them out on the PCB.

    In the image below, I have highlight the uBlox i2c pins.    You would need to connect these to the pins highlighted in yellow, which connect directly to the Pi i2c pins.

     

    I hope this helps.

     

    Peter --OzzMaker.com --

    #13143
    johnsom
    Participant

    Yes, this answers my question perfectly.  Thank you for the fast response.

    johnsom

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