Showing posts with label howto. Show all posts
Showing posts with label howto. Show all posts

Playing MIDI tracks from an Arduino

Posted: Thursday, 29 October 2015

Link: https://www.extramaster.net/tools/midiToArduino/

Table of Contents (TOC)


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So, you just learnt how to control a buzzer using an Arduino, but you want more then just simple beeps and hums - you want to assert your dominance over the sound-waves to show-off how well you can control the buzzer.

Cynical? Well there's no denying that it's a sentiment that we all share once we learn something new, but hey, if you've managed to acquire and get an Arduino working, then that's quite far an accomplishment.

A quick search of "music buzzer arduino" should point you to the right direction, but no-one has the time to individually hand-code and map the midi-tones to the frequency values that the Arduino's Tone function requires, especially if you're working with a long MIDI track.

The solution?

https://www.extramaster.net/tools/midiToArduino/

Circuitry

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Wiring the Buzzer is trivial, just place the buzzer on two strips (on a breadboard), connect one strip to Pin 11 on your Arduino, and the other strip to the Ground.

Demo

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https://www.youtube.com/watch?v=B1oHQzp1P3w
https://www.youtube.com/watch?v=4FDFpycApP4

Note that this also works with Raspberry Pis.
https://www.youtube.com/watch?v=HOisQF-JaS0


Steps/Instructions

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  1. Visit: https://www.extramaster.net/tools/midiToArduino/
  2. Upload a midi file
  3. Choose the track that you want to export
  4. Copy the resulting code to a new Arduino sketch

Sample Exported Arduino Code

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Didn't get the midi file to work with the web app? No worries, here are some sample code generated by the web-app

Midi: Fleuron-128 - Heaven - Song: Shaun Frank & KSHMR - Heaven (feat. Delaney Jane)

Midi: Antergy - DB15 - Song: Atmozfears - DB15

Midi: Kevin Fishburne - Terra's Theme - Song: Final Fantasy VI - Terra's Theme

https://www.extramaster.net/tools/midiToArduino/

Final Notes

^ TOC Oh, and by the way, it appears that you can leave the Piezo buzzer running on loop for an extensive amount of time (24 hours+), so if you want to play a midi indefinitely, you can use an Arduino to do so.

Unfortunately, you can only have one tone running at a time, so if your midi track has multiple keys being played simultaneously, expect some wacky results. (here - try this: http://www.forelise.com/midi - "Track 2: Acoustic Grand Piano - Piano - Fr Elise")
If you attempt some protothreads hack, then expect only one Piezo buzzer to work (at a time). But if you're game, and want to give using protothreads a try:





https://www.extramaster.net/tools/midiToArduino/

How to bypass YouTube's age restrictions

Posted: Thursday, 10 April 2014

Add to Chrome
Download the source on Github here!
What's stopping you from watching that trailer for that game that you're interested in?

Well apparently, YouTube's age restrictions is the barricade to everything.

I know, the age restriction is horribly implemented. Imagine this scenario. You're watching a trailer for titanfall, but wait. You can't actually watch it because the video is flagged by YouTube as not adhering to some community guidance.
Basically, the trailer uploaders, or someone, set the trigger for the video to be watched only by people with a YouTube account that's also over 18 years of age. Amazing isn't it?
So titanfall, an MA15+ game, has its official trailer blocked to those aged 15, 16 and 17 because you're not 18 and above. How ridiculous and uncalled for is that?
It's over-restrictive and limiting for a game that's rated and approved for those aged 15 and above to be blocked by YouTube for that age. And that's where this extension comes in.
MA 15+ classified material contains strong content and is legally restricted to persons 15 years and over. It may contain classifiable elements such as sex scenes and drug use that are strong in impact.