Use any combination of LEGO and HiTechnic sensors to expand your robot’s sensor capabilities and leave other sensor ports to connect TETRIX controllers and other devices. Connect more than one HiTechnic Sensor Multiplexer for more connectivity. The Sensor Multiplexer is not supported on the EV3.
The SMUX connects to an NXT sensor port using a standard NXT wire and uses the digital I2C communications protocol. A standard HiTechnic battery box is provided with the SMUX that uses 6 AA batteries to provide adequate power for the attached sensors. The SMUX supports a wide range of digital and analog sensors.