Brett's channel - The Keyboard Workshop
https://www.youtube.com/channel/UCFD_Kisn67FVEn-uwjZJfIg
Arduino code for 4-note polyphonic penny organ
http://hastebin.com/hijijuzoka.coffee
We got the 4-note polyphony working!!

By Julian

Youtuber, shed dweller, solar charge controller aficionado

13 thoughts on “Project: penny organ – 4 note polyphonic software”
  1. Avataaar/Circle Created with python_avatars yuvalro says:

    hastebin code no longer with us… halp!

  2. Avataaar/Circle Created with python_avatars Luís Guilherme Holl says:

    I'am musician and i have enjoy this video. Thanks. My technical english is not so good, but i have learning somethings with your videos. Thank's. I want to know a little more about the oscilator and the combination with mpr121. Can you show me were ai found some material to study that?
    Thanks.

  3. Avataaar/Circle Created with python_avatars Antonio Vasconcelos says:

    can you paste the code again? please. I'm drawing a blank from hastebin. This one is my favorite project, I'd love to see more about sound generation technics with the Arduino. thanks

  4. Avataaar/Circle Created with python_avatars Abgas Engel says:

    I will use a Raspi and Python. When it works, I let you know because your video is the start of it. Big Thx.

  5. Avataaar/Circle Created with python_avatars Jeremy X says:

    That sounds amazing.

  6. Avataaar/Circle Created with python_avatars tengelgeer says:

    Still the float array 🙁 Julian, you as a assembler programmer should know the micro has no hardware float support and you don't need a float only to represent a decimal with a decimal point…

  7. Avataaar/Circle Created with python_avatars Aerik Forager says:

    I am still quite enthralled by this project, please do continue to update on it regularly. 🙂

  8. Avataaar/Circle Created with python_avatars Brock Flores says:

    I've been hoping to build something very similar, so you are like my hero right now!
    Keep videos coming on this beauty 🙂

  9. Avataaar/Circle Created with python_avatars dentakuweb says:

    I've found anything you've done that involves making any types of sound very interesting.
    Synth geeks are like that 🙂

  10. Avataaar/Circle Created with python_avatars devjock says:

    Amazing organ! Question though;

    How difficult would it be to restructure this system so there would be one arduino doing all the keyboard handling and sending out i2c or some usable multi out serial format over shared datalines, sort of like a rough midi out.

    Then have that signal spread out over banks of additional arduino's doing the synthesis work (with possible feedback of in-use oscillators), with a small (possibly passive?) mixer in the back that ties the audio together?

    Would it be possible to built a tank of a multi timbre synth solely out of a bank of arduino's? Or is it more economically feasible to go the raspberry pi 3 route, and do all the synthesis, mixing, modulation and audio output rendering in software?

  11. Avataaar/Circle Created with python_avatars Gooberslot says:

    I wasn't fed up with this project.

  12. Avataaar/Circle Created with python_avatars John Schroeder says:

    You couldn't have played a simple melody ???

  13. Avataaar/Circle Created with python_avatars Telmo Monteiro says:

    This project is interesting, but I'm really waiting for updates on the MPPT charge controller. (Or PWM). Solar energy is "cool"!

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