August 14, 2013 · breadboard gpio linux programming python raspberrypi WiringPi

Tux Crossing Demo

As I've mentioned in my previous post, I've decided to try GPIO programming.  My Cobbler GPIO Electronics Starter Kit finally arrived and with no time to spare, I've started assembling my first project.

For a start, I've did a simple LED wiring to Pin 1 on Raspberry's GPIO (3.3V) through a 330Ω resistor and Pin 6 (Ground), and it worked brilliantly!

Next, I've tried a really simple project, called Tux Crossing which is nothing more than a UK Pelican Crossing simulator. It's built using 5 x LEDs (a Red, Yellow and Green and another Red and Green for the red and green "man" indicators), 5 x 330Ω resistors and a single push-button for the pedestrians to control the lights.

I've followed the tutorial by Gordon @ Drogon which you can get here. It's really simple to assemble, and as it's a breadboard based step-by-step project, there is no danger of doing harm to your Pi. The tutorial shows how to connect individual elements, as well as includes a shell script to get the Crossing going.

And, here is my Tux Crossing in action!

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