https://tinkernology.blogspot.com/2009/10/hitechnic-sensor-multiplexer.html
Tinkernology: HiTechnic Sensor Multiplexer
In case you have missed it like I did, HiTechnic has introduced a new Sensor Multiplexer . You can add any HiTechnic or Lego supported sen...
hitechnicsensormultiplexer
https://forum.arduino.cc/t/using-arduino-uno-to-control-hitechnic-motor-controller-over-i2c-bus/244161
Using Arduino Uno to control HiTechnic Motor Controller over I2C Bus - Networking, Protocols, and...
Jul 3, 2014 - Hello, I was looking for a way to replace the LEGO NXT Brick with an Arduino Uno in order to control the HiTechnic Motor Controller. Seemed like an easy enough...