Motorized Wall-E by Infrared Remote Control & SBrick

The Wall-E is a static model with more than 600 pieces.  In order to be motorized it, you would require one set of infrared remote control and two motors to drive the two tracks.   There are a lot of  instruction and videos online, below is one of them:

http://www.miniplayhouse.com/moc/moc-lego-wall-e-rc-motorized/

The motors were installed at the bottom of the model, the IR receiver was installed at the back and a compact battery case was put inside the model.  For one set of set Lego IR control, two motor sand the battery case, it would cost more than HK$700 including shipping,

SBrick is a blue-tooth device that can control four motors via your smart phone.  It can be used to replace the IR remote control.  You could purchase at around HK$500 including shipping online.   With one set of Lego IR remote control costing more than HK$270,  a SBrick of which can replace two sets of IR remote control,  was not that expensive.  By registration, you can access the SBrick website and design the control panel by yourself or download other public panels.   By using several SBricks, you can use your smart phone to control very complicated models.