Line - following robot - mBot controlled using mBlock software

Using mBlock to do the graphical programming and achieve the line - following function of mBot car. More information about mBot here: 2.4 G Version: http://www.makeblock.cc/mbot-blue-2-4g-version/ (3 colors available) Bluetooth Version: http://www.makeblock.cc/mbot-blue-bluetooth-version/ (3 colors available)