Building a Circuit on the Arduino Prototype Shield

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Hi. Sorry for the long absence, I’ve been very busy with internship for the past 1 week. I found some time to do a short demonstration on building a circuit on my home made Arduino Prototype Shield. If you’re interested in reading how I made the shield myself, here’s Part 1, Part 2 and Part 3.

I’ve decided to show the circuit construction in a video for the convenience of my readers. Without further ado, here it is.

As mentioned in the video, I used a common anode 7 segment display. What this means is, to turn on a specific LED, the microcontroller have to send a LOW signal. To turn the whole 7 segment display off, all of the pins have to be set HIGH.

Here’s a simple pinout diagram I found on the internet.

With that in mind, I wrote a function to properly display digits and also to clear the whole display if desired. Here is the code.

There are many interesting things that a 7 segment display can do. In the next post, I’ll be showing an example of it 🙂

Thanks for reading.


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