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https://github.com/jpommerening/midiboy

Open source MIDI sync box for LSDJ and nanoloop
https://github.com/jpommerening/midiboy

Last synced: 24 days ago
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Open source MIDI sync box for LSDJ and nanoloop

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README 

        
# MIDIboy



> Open source MIDI sync box for LSDJ and nanoloop



## About



_MIDIboy_ aims to be a dead-simple way to synchronize your Gameboy to a MIDI clock.

Based on the [LSDJ-MC](http://www.firestarter-music.de/lsdj/) it is designed around

the affordable [ATtiny2313(a)][attiny2313a] microcontroller (µC).



## Features



- Starts in Omni-Mode, learns MIDI channel at the press of a button.

- Clock jitter correction

- Standalone clock with tap-tempo

- Sysex programmable



## Requirements



To compile the code in this repository, you need a proper C compiler. Luckily, the

open source compiler suite GCC ships with great AVR support.

This repository includes a [Dockerfile](Dockerfile) to build an image with GCC and

SimAVR.

You can find more details about that in the [documentation](docs/docker.md).

If you're using a Mac, you can also use [Homebrew](/osx-cross/homebrew-avr). Windows

users can try the ready-to-use [WinAVR][].

Everyone else probably doesn't need my help to get up and running.

If you are not ready to go hardware with it and just want to give it a try, you can

use [SimAVR][].

To transfer the compiled binary to the microcontroller you need a hardware programmer

and software. I'm using [USBasp][] connected to a breadboard and [AVRDUDE][].

Finally, besides the microcontroller, you need some electric components, maybe a case

and a power supply. Also, a soldering iron and something to etch and drill your PCB.



## Next



- [About the ATtiny2313a](docs/attiny2313a.md)

- [Bill of materials](docs/bom.md)

- [Circuit diagram](docs/schematic.md)

- [PCB layout](docs/pcb.md)

- [About the Docker image](docs/docker.md)

- [Using SimAVR for simulation](docs/simavr.md)

- [Using AVRDUDE to program the µC](docs/avrdude.md)



[winavr]: http://www.mikrocontroller.net/articles/WinAVR

[usbasp]: http://www.fischl.de/usbasp/

[avrdude]: http://www.nongnu.org/avrdude/

[simavr]: https://github.com/buserror/simavr

[attiny2313a]: http://www.atmel.com/devices/attiny2313a.aspx



## License

> Sourcecode: [BSD](LICENSE-BSD) (below)  

> Documentation: [CC BY-SA 4.0](docs/LICENSE-CC-BY-SA-4.0)



Copyright © 2014, Jonas Pommerening 

All rights reserved.



Redistribution and use in source and binary forms, with or without

modification, are permitted provided that the following conditions are met:



1.  Redistributions of source code must retain the above copyright notice, this

    list of conditions and the following disclaimer.

2.  Redistributions in binary form must reproduce the above copyright notice,

    this list of conditions and the following disclaimer in the documentation

    and/or other materials provided with the distribution.



THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND

ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR

ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.