So, you’re beginning to learn hacking an Arduino board? Here’s a fun activity to do: a traffic signal light simulator. For this activity, you will need:
an Arduino board (I am using an Arduino Uno)
a breadboard
LED’s (1 red, 1 yellow and 1 green)
220 Ohm resistors
some jumper cables (blue and red cables will do)
Attach the components to the breadboard as shown in this diagram:
I used an app called “Fritzing” to come up with this clean diagram.
Now, fire up your Arduino IDE and key-in the following code:
If everything will go as planned, you will have the LEDs lighting up in this sequence:
ABOUT THE AUTHOR
Robert “Bob” Reyes is a technologist, an ICT Consultant and Tech Speaker, a certified Google IT Support Specialist, and an Open Source advocate representing the global non-profit Mozilla (makers of Firefox) in the Philippines. Bob is a Technology Columnist for the Manila Bulletin Publishing Corporation and an aviation subject matter expert contributor for Spot.PH.
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