Where to Go From Here?
Congratulations, you now have hands on experience with creating a simple traffic light with your Arduino Uno! You also have basic knowledge of all electronic related things that you’ve used during the video, such as why is it important to pay attention to the short & long LED legs and why a 200 ohm resistor chosen.
Here is the project with all of the code from this tutorial.
If you want to learn more, check out the official Arduino website. Since it is an open source, so you’ll find a bunch of free tutorials & projects where you can simply copy paste the code and run it into your Arduino. The documentation is also great.
And oh – just one more thing. This was just an introduction to the Arduino Uno to get you started.
The really cool part is the follow-up tutorial, where you’ll learn how to actually control Arduino-baed hardware with your iPhone! It’s super-cool, so don’t miss it! :]
In the meantime, if you have any comments or questions, please join the forum discussion below!
![](http://www.raywenderlich.com/downloads/DaniArnaout.png)
This is a post by iOS Tutorial Team Member Dani Arnaout, a Computer Engineering Undergraduate at BAU,Lebanon. Dani has a YouTube channel full of programming & iOS related videos.