The DFRobot gravity I2C HUB module is designed to connect up to 8 I2C devices to a main-controller, which allows you easily to hook up multiple I2C devices in project building, for instance, useGravity-4P I2C/UART sensor cable to connect with Gravity modules or use jumper wire to connect with breakout modules.
Dimension is 27*37mm Weight is 17g
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