上QQ阅读APP看书，第一时间看更新
Technical requirements
You must have EV3 Home Edition Software V1.2.2 or newer installed on your computer. You may also install LEGO Digital Designer (LDD) V4.3 and download the LDD file for this project to guide you in the building process.
The LDD file is available on the Downloads page of the the Builderdude35 website:
http://builderdude35.com/download/security-tank-ldd/
The LDD and EV3 files for this chapter are available on GitHub:
https://github.com/PacktPublishing/Building-Smart-LEGO-MINDSTORMS-EV3-Robots/tree/master/Chapter02
Check out this video to see the robot in action: