electro-music.com   Dedicated to experimental electro-acoustic
and electronic music
 
    Front Page  |  Articles  |  Radio
 |  Media  |  Forum  |  Wiki  |  Links  |  Store
Forum with support of Syndicator RSS
 FAQFAQ   CalendarCalendar   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   LinksLinks
 RegisterRegister   ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in  Chat RoomChat Room 
 Forum index » DIY Hardware and Software » Arduino
MIDI on Adafruit Circuit Playground (Arduino device)
Post new topic   Reply to topic
Page 1 of 1 [10 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
Author Message
Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 267

PostPosted: Thu Dec 08, 2016 6:20 pm    Post subject: MIDI on Adafruit Circuit Playground (Arduino device)
Subject description: Doing MIDI the new-fashioned way!
Reply with quote  Mark this post and the followings unread

So yeah um, I finally got my hands on an Adafruit provided Arduino Program that takes in eight cap sense connections and outputs MIDI on the defined percussion MIDI format. It's a great little tutorial that you can read about here:

https://learn.adafruit.com/circuit-playground-fruit-drums/midi-drums

My question has to do with the geometries of percussion instruments, specifically when implemented as capacitive sense devices. That requires some explanation i guess. The Circuit Playground is pre-wired with 1 MEG resistors on each of it's eight input pins. so you can have up to eight cap sense inputs, sweet! and that is right out of the box. My plan is to make a drum station on my 3D printer that connects to these eight inputs. pretty neat, huh?

The specific question is: can I combine inputs around each other to make 2D and 3D drum sensors? I plan to 3D print the sticks in conductive filament and make sensors the same way, or perhaps as a combo of insulating filament and 3D filament. The exact form is uncertain.

So that's more conjecture and planning than explanation, but anyway that's what I have in mind. Please advise.

Les


Circuit Playground ColorFABB _HT.jpg
 Description:
Circuit Playground running a NeoPixel LED demo in the enclosure I made.
 Filesize:  259.01 KB
 Viewed:  491 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

Circuit Playground ColorFABB _HT.jpg



_________________
"Let's make noise for peace." - Kijjaz
Back to top
View user's profile Send private message Send e-mail
Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 267

PostPosted: Sat Dec 10, 2016 8:53 am    Post subject: Reply with quote  Mark this post and the followings unread

Here are two views of the rough-hewn version of the enclosure for the project (including conductors).

Les


Circuit Playground Controller Bottom View.png
 Description:
 Filesize:  83.18 KB
 Viewed:  390 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

Circuit Playground Controller Bottom View.png



Circuit Playground Controller Top View.png
 Description:
 Filesize:  114.57 KB
 Viewed:  421 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

Circuit Playground Controller Top View.png



_________________
"Let's make noise for peace." - Kijjaz
Back to top
View user's profile Send private message Send e-mail
Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 267

PostPosted: Sat Dec 10, 2016 7:34 pm    Post subject: Reply with quote  Mark this post and the followings unread

Two shots of a robotic design from a long time ago (well only two years ago, but long enough since I've been in 3D printing only three years). I kind of thought of it like a signature emblem, like on a car hood or a product facade. I called it rather unimaginatively "Robotica".

Les


Robotica x 2.JPG
 Description:
 Filesize:  1.55 MB
 Viewed:  418 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

Robotica x 2.JPG



Robotica.JPG
 Description:
 Filesize:  1.67 MB
 Viewed:  422 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

Robotica.JPG



_________________
"Let's make noise for peace." - Kijjaz
Back to top
View user's profile Send private message Send e-mail
Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 267

PostPosted: Sat Dec 10, 2016 7:55 pm    Post subject: Reply with quote  Mark this post and the followings unread

another design, slightly different.

Les


Ivan Logo shortie.png
 Description:
 Filesize:  42.54 KB
 Viewed:  432 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

Ivan Logo shortie.png



_________________
"Let's make noise for peace." - Kijjaz
Back to top
View user's profile Send private message Send e-mail
Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 267

PostPosted: Sun Dec 11, 2016 2:42 am    Post subject: Reply with quote  Mark this post and the followings unread

I printed that last one or similar (I made the length 2*sqrt(2) which is about 3 or slightly under). It looks more like a torso and also looks less like a Star Wars Imperial Ship, lol. I printed it in huge size! It's bigger than my hand, se below.

Les


Ivan Logo.jpg
 Description:
 Filesize:  2.12 MB
 Viewed:  421 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

Ivan Logo.jpg



_________________
"Let's make noise for peace." - Kijjaz
Back to top
View user's profile Send private message Send e-mail
Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 267

PostPosted: Sun Dec 11, 2016 9:16 am    Post subject: Reply with quote  Mark this post and the followings unread

My desk is becoming cluttered with shapes from the 3D printer! Time to make a decision as to which shape to use on NYE. The robotic clogo seems to be the winner! note orange slices that do fit, but prevent the top half from closing!

Les


desk of shapes.jpg
 Description:
desk of shapes
 Filesize:  1.83 MB
 Viewed:  424 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

desk of shapes.jpg



_________________
"Let's make noise for peace." - Kijjaz
Back to top
View user's profile Send private message Send e-mail
Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 267

PostPosted: Sun Dec 11, 2016 11:27 am    Post subject: Reply with quote  Mark this post and the followings unread

More Ivan Controller Photos - mockup for test purposes!

Les


Ivan controller 3.JPG
 Description:
 Filesize:  2.4 MB
 Viewed:  471 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

Ivan controller 3.JPG



Ivan Controller 2.JPG
 Description:
 Filesize:  2.4 MB
 Viewed:  430 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

Ivan Controller 2.JPG



Ivan Controller 1.JPG
 Description:
 Filesize:  2.59 MB
 Viewed:  449 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

Ivan Controller 1.JPG



_________________
"Let's make noise for peace." - Kijjaz
Back to top
View user's profile Send private message Send e-mail
NoodleDriver



Joined: Jun 22, 2016
Posts: 30
Location: Ireland
Audio files: 5

PostPosted: Wed Dec 14, 2016 5:11 am    Post subject: Reply with quote  Mark this post and the followings unread

Pretty cool Les.

It kinda reminds me of the cylons from BSG!

https://upload.wikimedia.org/wikipedia/en/1/1e/Cylon_Centurion.png
Very Happy
Back to top
View user's profile Send private message
Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 267

PostPosted: Wed Dec 14, 2016 5:48 am    Post subject: Reply with quote  Mark this post and the followings unread

yes i think the shape is well known in sci-fi so i'm abandoning it. i did cut it apart and tape it back up with sense wires to the board as shown, it worked but poorly.

I realized a radial configuration would work best so I made the attached object.

It works well. The plan is to make a larger one that is big enough for a nursing home resident in a wheelchair to interact with it. This would involve wires dropping down with fishing weights on the ends of them.

With the limited capability of the mock-up i can get notes but not controlled notes. not that that's necessary, just it's kind of chaotic which i like also.

Les


Circuit Playground Mock-up 2.JPG
 Description:
circuit playground mockup 2
 Filesize:  2.1 MB
 Viewed:  406 Time(s)
This image has been reduced to fit the page. Click on it to enlarge.

Circuit Playground Mock-up 2.JPG



_________________
"Let's make noise for peace." - Kijjaz
Back to top
View user's profile Send private message Send e-mail
Inventor
Stream Operator


Joined: Oct 13, 2007
Posts: 6221
Location: near Austin, Tx, USA
Audio files: 267

PostPosted: Wed Dec 14, 2016 6:08 am    Post subject: Reply with quote  Mark this post and the followings unread

Here is an audio demo of the slightly modified example program "keyboard organ.ck" from the ChucK Princeton website.

Les


demo 2 recording 1.mp3
 Description:
Demo 2 recording 1

Download
 Filename:  demo 2 recording 1.mp3
 Filesize:  1.29 MB
 Downloaded:  741 Time(s)


_________________
"Let's make noise for peace." - Kijjaz
Back to top
View user's profile Send private message Send e-mail
Display posts from previous:   
Post new topic   Reply to topic
Page 1 of 1 [10 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
 Forum index » DIY Hardware and Software » Arduino
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum


Forum with support of Syndicator RSS
Powered by phpBB © 2001, 2005 phpBB Group
Copyright © 2003 through 2009 by electro-music.com - Conditions Of Use