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https://github.com/madskjeldgaard/mico
Matchbox sized 14 bit midi controller based on the Raspberry Pi Pico
https://github.com/madskjeldgaard/mico
midi midi-controller pico raspberrypi-pico raspberrypipico
Last synced: 5 days ago
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Matchbox sized 14 bit midi controller based on the Raspberry Pi Pico
- Host: GitHub
- URL: https://github.com/madskjeldgaard/mico
- Owner: madskjeldgaard
- License: other
- Created: 2022-01-27T14:13:22.000Z (almost 3 years ago)
- Default Branch: main
- Last Pushed: 2023-07-13T10:44:46.000Z (over 1 year ago)
- Last Synced: 2024-11-17T22:17:11.242Z (2 months ago)
- Topics: midi, midi-controller, pico, raspberrypi-pico, raspberrypipico
- Language: G-code
- Homepage:
- Size: 10.9 MB
- Stars: 20
- Watchers: 5
- Forks: 2
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE.md
Awesome Lists containing this project
README
# Mico - A tiny, cheap Raspberry Pi Pico midi controller
Mico is a small, cheap (~10 euros total) and super precise 14 bit midi controller based on the [Raspberry Pi Pico board](https://www.raspberrypi.com/products/raspberry-pi-pico/).
## Features
- 4 x detentless (smooth) encoders
- Velocity: Slow movements result in microscopic changes (1/16000 of the max range approximately), fast movements in large changes.
- A variety of "clip modes" (cycle through them by pressing the button):
- wrap (when the value goes above max, it wraps back to 0)
- clamp (clip at min and max value)
- 14 bit midi (as well as regular 7 bit midi)
- Cheap as chips and open sourced
## DEMO
There's a [demo here](https://vimeo.com/723291413).
## BOM
| Quantity | Part | Mouser Number |
|---|---|---|
| 1 | Raspberry Pi Pico rpi2040 | [474-DEV-17829](https://no.mouser.com/ProductDetail/SparkFun/DEV-17829?qs=sGAEpiMZZMv0NwlthflBi8NxDpSYKEiM3fbb2%2FVBX4k%3D) |
| 8 | 0.01uF capacitor, 0603 | [80-C0603C103M5R7411](https://no.mouser.com/ProductDetail/KEMET/C0603C103M5RAC7411?qs=ACslrEyEXNOtANB4TBkCnQ%3D%3D) |
| 16 | 10k resistors, 1%, 0603 | [603-RC0603FR-0710KL](https://no.mouser.com/ProductDetail/YAGEO/RC0603FR-0710KL?qs=sGAEpiMZZMtlubZbdhIBIAhzU1Tw%252BHVakiDuQ4Zki0U%3D) |
| 4 | 15mm Detentless encoders | [652-PEC11R-4015K-N24](https://no.mouser.com/ProductDetail/652-PEC11R-4015K-N24)(knurled) / [PEC11R-4015F-N0024](https://no.mouser.com/ProductDetail/Bourns/PEC11R-4015F-N0024)(flat) |
| 2 | Female header (to sandwich between the boards)| n/a |
| 2 | Male header (to sandwich between the boards) | n/a |
## Uploading the firmware
Download the latest firmware from the release and locate the `mico.uf2` file. While plugging your Pico into your computer, press and hold the "BOOTSEL" button. It will show up as a storage device on your computer. Copy `mico.uf2` to this device. Done.
## Building and uploading the firmware (optional)
If you want to build the code and mess around with it, it is recommended to use a second Pico flashed with the [picoprobe](https://github.com/raspberrypi/picoprobe) firmware.
### Using picoprobe
```bash
cd software
mkdir build
cd build
cmake ..
make && openocd -f interface/picoprobe.cfg -f target/rp2040.cfg -c "program mico.elf verify reset exit"
```
Debug:
```bash
openocd -f interface/picoprobe.cfg -f target/rp2040.cfg -s tcl
```
## Usage
### SuperCollider
There is an easy to use interface for this controller [here](https://github.com/madskjeldgaard/mico-sc).
## License
This work is shared under the *Attribution-NonCommercial-ShareAlike 4.0 International* license.
If you have questions about that, send me an email **mail at madskjeldgaard.dk**
## Credits
These projects were a big help and inspiration in making this:
- [schatzmann blog](https://www.pschatzmann.ch/home/2021/02/15/usb-midi-on-the-arduino-pico/) and [also this post](https://www.pschatzmann.ch/home/2021/02/19/tinyusb-a-simple-tutorial/)
- [pico-example-midi](https://github.com/infovore/pico-example-midi)
- [encoder-pio](https://github.com/pimoroni/pimoroni-pico) is from the pimoroni-pico library. MIT Licensed.