USB MIDI chord strummer PCB for Teensy 3.2 (built in audio) or Teensy LC (USB MIDI only)
What is it?
T. Chordstrum is a pocket size USB MIDI chord strummer, to be played similarly to an autoharp or omnichord. It is intended for pairing with a PJRC Teensy microcontroller board that is not…
T. Chordstrum is a pocket size USB MIDI chord strummer, to be played similarly to an autoharp or omnichord. It is intended for pairing with a PJRC Teensy microcontroller board that is not included and must be bought separately. The T. Chordstrum can be put together in two different ways, either with a Teensy LC for brains giving it USB MIDI capability only, or with a Teensy 3.2 giving it built in audio through a 3.5mm line level jack (in addition to the USB MIDI).
The strumming area consists of eight touch pads (or “strings”) that play notes of the chord selected.
The chord to be played is selected using the buttons of the chord keyboard. The keyboard is setup in Circle of Fifths order, putting chords most frequently used together next to eachother. The top row selects Major chord, mid row selects minor chord and bottom row selects 7th chord. You can use combinations of these to select other chords.
Included
1x T. Chordstrum PCB (99x64mm) only
Not included
All the other stuff like switches, socket, Teensy, etc.
Color of PCB may vary. Contact me if you need a specific one.
This item is meant for people who want to do their own takes on this instrument/controller. If you want the full kit, have another look in my store and see if I have the kits in stock.
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Review Breakdown
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Average Ratings
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Michael |
Nov. 1, 2019
This thing is excellent!
The PCB and the documentation are of very good quality. It was fun to build this instrument and it is even more fun to play it. Thanks for this GREAT little thing!
John |
May 3, 2018
I highly recommend this pcb board and maker!
This was my first project with a pcb board and soldering. It all worked on the first try and I'm currently messing around with the code, which is well documented and easy to wrap your head around. It's kind of like a little pocket operator, which is awesome.
Thanks Johan, I hope you keep making interesting midi contraptions..
Mario |
Oct. 19, 2017
Lot of fun while building and playing!
Since I had components lying around, bought PCB only version. Also, used older version of Teensy (3.1) without any problem, since it's pin compatible. Was bit worried about connecting those two wires that need to be soldered to pads at underside, but it was very easy to do with pin header. Flashing the hex file was no brainer and everything worked at first try. Kudos for open sourcing the code too!
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