How to make: Arduino Obstacle Avoiding Robot Car | Under $20

In this video we will build an Arduino “Obstacle Avoiding Robot“. The total cost of this project is under $20. We will assembly a robot set containing all the components. Then we will programming the Arduino. Also see this project: mXY Board - Low-Budget XY Plotter Drawing Robot Board Arduino Obstacle Avoiding Robot Car Kit Required Tools (Optional): XIAOMI Wowstick - Extension Screw Nut - 9V Battery Header - h