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    • i-MOD Button/I2C - i-MOD standard

    Owned by Anu Selvaraj (Deactivated)
    Last updated: 09. Dec 2022
    1 min read

    The i-MOD connectors are standard connectors defined by Seco to allow customers to easily add functions to a baseboard.

    The connector got 3 pins for buttons and an I2C-interface for sensors etc.

    This is the pinning of the connector on the carrier board.
    Extension boards use the opposite numbering scheme.

    Pin

    Signal

    Function

    Pin

    Signal

    Function

    1

    Button (On/Off)

    On/Off, Key, … (OS-specific)

    2

    Button (Vol+)

    Generic Button, i.e. Volume+

    3

    Button (Vol-)

    Generic Button, i.e. Volume-, Reset_In

    4

    GND

    Power

    5

    +3V3

    Power

    6

    I2C_CLK

    I2C Clock signal

    7

    I2C_DATA

    I2C Data signal

    8

    I2C_INT

    GPIO; Mainly used as interrupt input pin of attached peripherals.

    9

    I2C_GPIO

    GPIO; Mainly used as output

    10

    \RESET_OUT

    Reset output of the baseboard: Low during reset and suspend. High when running.

    Connector: 687110149022 by Wuerth

    Check the baseboard datasheet for button IO-voltage and usage. Typically the 3 button-signals are to be used with an open-collector Output / switch to GND.