Requirments:
sudo apt-get install i2c-tools libi2c-dev
sudo pip install netifaces
sudo pip install pysmbus
Support and examples for Grove - LCD RGB Backlight for Jetson Platforms
Tested on pin 27(SDA) and 28(SLC) and 1 and 6 are power.
https://www.seeedstudio.com/item_detail.html?p_id=1643
GPIO layout on TX1 http://jetsonhacks.com/nvidia-jetson-tx1-j21-header-pinout/