$20 Arduino Obstacle Avoidance Smart Car

Hope you enjoyed the video above, in this tutorial, you can make yourself one of this obstacle avoidance robot car for under $30.

What you will need:

$19.99 Smart Robot Car kit: https://www.banggood.com/DIY-L298N-2WD-Ultrasonic...

Parts you might already have:

M3 *10mm Standoffs: https://www.banggood.com/50pcs-M3-10mm-Brass-Fema... Amazon: https://www.banggood.com/50pcs-M3-10mm-Brass-Fema...

Jumper cables: https://www.banggood.com/120pcs-Multicolored-Dupon...

Amazon: http://amzn.to/2G6WH78

4 AA batteries

Required Tools:

Soldering Iron:

Screw Drivers:

Twist Ties(For fixing the ultra sonic sensor)

Optional Tools:

3D Printer for upgrade parts

Please follow the video to assemble your kit. The board mounting location will be covered in the next step video.

Please be aware that there are connect changes in the next step.

To learn more about the L298N, please watch:

https://youtu.be/TMwBQ4sb3XY

The test codes for motors, ultra sonic sensor and servo can be found here:

http://chenthedesignmaker.com/arduino-smart-robot-...

Parts used in this video:

Ultrasonic Sensor holder by Uri Shani: https://www.thingiverse.com/thing:2765463/

Thanks Uri!

Tiny screw kit: https://www.banggood.com/1000Pcs-Glasses-Sunglass...

Third Wheel: https://www.thingiverse.com/thing:2811802

9V Battery Clip: https://www.banggood.com/Wholesale-9Volt-Battery-...

Full code can be found here:

http://chenthedesignmaker.com/robot-car-part-3-cod...