Today is the last day.
I’m teaching a course at betahaus in Berlin.
And tonight is our last session.
It’s also my last day in Berlin (for now) — but more on that some other time.
We’ve had a lot of fun in the course.
One thing I taught was how to play a melody using an Arduino.
…and I thought that might be interesting for you too.
(If you don’t know what Arduino is, you can learn about it here: https://www.build-electronic-circuits.com/what-is-arduino/ )
Here’s how to create a melody player:
In the last session, they (the students) learned to play a tone with a piezo speaker, using the tone() function.
By combining many tone() commands, you can create a melody.
Just find the notes of the song you want to play (easy to do with Google).
There’s also a function called noTone() to stop the tone from being played. By combining these two functions with the delay() function, you can play melodies.
Here’s an example:
http://youtu.be/cye_wiaqybk
The tone function needs the frequency of the note you want to play. To find the frequencies of musical notes, you can check out the table on this page:
http://www.intmath.com/trigonometric-graphs/music.php
If you have an Arduino and a piezo speaker, I would highly recommend you to try it out. It’s a fun exercise, and it gives you something cool to show off to your friends.
No idea what Arduino is, or how to get started?
I have a guide — “Get started with Arduino in less than a day” — that you’ll receive as a bonus if you get one of my eBook bundles here:
https://www.build-electronic-circuits.com/products/ebook-2nd-edition
Keep on Soldering!
Oyvind
PS! It’s soon time to launch the next round of my online course. I just need to finish some of my projects before taking on something new. I’ll keep you posted.
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