Chaining I2C

Discussion in 'UDOO NEO' started by Nico, Dec 2, 2016.

  1. Nico

    Nico New Member

    Jan 19, 2016
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    Hi guys,

    I am currently playing with a Udoo Neo, and I2C sensor, and I would like to know if there is possible to chain same type I2C sensors (2 barometric sensor for example).
    I can access to the sensor value inside this folder "/sys/class/i2c-dev/i2c-1/device/1-0060/iio\:device0", but there is no device1 when the second sensor is plugged, so I am not sure if it is possible or not.

    Thanks for reading, and helping !
  2. Laura

    Laura UDOOer

    Apr 22, 2016
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    I2C wires cannot be daisy chained though slave devices, as far as I'm aware. Though you can make something that resembles a daisy chain, like what has been done with the UDOO Bricks.

    Providing you have the sensors hooked up to the I2C wires and both sensors have a unique address, then they should work. Have you changed the default address for one of the sensors? Usually done via a jumper or solder bridge.

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