Method 1: From Github.
Change directory to /home/pi
Then clone the repository from github
git clone https://github.com/sunfounder/SunFounder_SensorKit_for_RPi2.git
Method 2: From our website
Download the source code from our website. www.sunfounder.com.
Click LEARN->Get Tutorials, Find and click on Sensor Kit v2.0 for B.
Then on the page of the kit, click the package Sensor Kit v2.0 for B to download.
On your computer, unzip the file and move the folders extracted to /home/pi/ on your Raspberry Pi.