Remote control cars are fun, but self-driving robot cars are even more fun. In this tutorial, we'll build a four-wheeled robot that can drive around and avoid obstacles. I purchased this complete 4WD kit from AliExpress, but you can easily buy most of these components at an electronics store and assemble them yourself.
I recommend reading through all the instructions before starting, as this will clarify some things that may be confusing on the first run-through. Because of the length of the instructions, this can also look like a very long, advanced project, but it's actually pretty simple. You don't have to be intimidated – this is a beginner's project that you can get satisfying results with and build on as you learn more. Don't like this robot? Here are some more Arduino robots. 8 Arduino Robots You Can Build for Less Than $125. 8 Arduino robots you can build for less than $125. The Arduino can do a lot, but did you know it can create full-fledged robots? For quite cheap too! Read more about what you could easily build instead.
Here's what we got after taking everything out of the box: