As I managed to make the Arduino software work under linux, I did this week Make weekend project : “Intro to the Arduino”.

It’s really simple. When you push a button connected to pin 2, a led connected on pin 9 will fade in and out.
Easy isn’t it? Unfortunately I’m pretty bad in electronic. My first try made the led blink nervously. After several unsuccessful attempts, I decided to make things work step by step.

  1. The breadboard
    How does this thing work? After looking at this tutorial, it appears that my breadboard is separated by the center gap in 2 independent parts. Each part has 16 rows and 5 columns of contacts. All the contacts of a row are connected together.
  2. The led
    I put the led on the breadboard and connected it on pin 9. I tested it with the blinking led example. As always it didn’t work on the firsts attempt. The led was connected the wrong way.
  3. The button
    I spent a lot of time on it. I first have to figure out how it was working. So I modified the previous setup and put the button between the pin and the led. Once I got it working, I connected it to pin 2. Then according to the original schematic, I had to connect the rest of the circuit to the power pins.

Ten minutes later it was finally working! Here’s a totally wonderful and awesome video (edited with Avidemux) to prove it 🙂

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The road will be long and hard before I get the backup thingie for pc-engine done…

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