Welcome back.
In the previous part, I showed you how to connect the circuit for the traffic lights simulator. This time, I’ll show you the sketch to control them.
If you do not have the Arduino software installed already, it can be downloaded from the Arduino website. You’ll need the Arduino IDE, I have not tested any of this with the Online IDE.
This is a great little project for learning about Arduino programming as well as LEDs and resistors.
I’ll show how to build a traffic light simulator on a breadboard and write an Arduino sketch to control it. This first part is about building the circuit, while the second part will focus on the sketch.
And: No soldering required.
You will need the following parts. I’ve provided links to product description pages, in case you’re not sure what to get.
