Moppy is a musical floppy controller program built for the Arduino UNO.

--INSTALLATION--
The Arduino code requires the TimeOne library available here: http://www.arduino.cc/playground/Code/Timer1

You will need to follow the directions in the appropriate Java/SerialDrivers folder for your system to install the serial drivers prior to running Moppy.

Upload the included Arduino code to the Arduino of your choice, and open up the included Java code in your favorite IDE.

--HARDWARE--

Moppy was built for Arduino UNO, though it should work just fine on most
Arduinos.  The pins are connected in pairs to floppy drives as follows: Even
pins (2,4,6...) are connected to each drive's STEP pin (pin 20) , the matching
odd pins (3,5,7...) are connected to the each drive's DIRECTION control pin
(pin 18).  So the first floppy would be connected to pin 2 & 3, the second floppy to 4 & 5, and so on.

Make sure you ground the correct drive-select pin (pin 12), or the drive won't respond to any input (just connect the drive-select pin on the floppy to the pin directly below it).  You can tell when you have the right drive selected, because the light on the front of the drive will come on.

Also, it's VERY IMPORTANT that your Arduino is grounded with the drives, or
the drives will not register the pulses correctly.  To do this, make sure that
the GND pin on the Arduino is connected to any of the odd-numbered pins on the
floppy drive (usually all odd-numbered pins are directly connected anyway, as
can easily be checked with an ohmmeter).


--CONFIGURAITON / USE--

- Open up the code in your favorite IDE and run it.  Alternatively, you can build the MoppyDesk.jar file and run that.
- Select the COM port that the Arduino is hooked up to from the "Arduino Port" drop-down.  You will need to have this configured before you launch MoppyDesk.
- Click the "Connect" button to create a new Sequencer connected to the specified COM port.
- Click the "Load Sequence" button and select a suitable MIDI file (see below).
- Click "Start" to start playback (if all goes well).
- The Stop/Reset button will stop playback and reset the drives.  Pressing "Start" again will resume from where the sequencer left off.  You will need to reload the MIDI to start from the beginning.


--MIDI FILE INFORMATION / GUIDELINES--

- MIDI files should have one MIDI channel for each controller pin on the Arduino.  Channel 1 will be sent to pin2, channel 2 to pin4, &c.
- Each drive can only play a single note at a time.
- The software will only attempt to play notes between C1 and B4.  Floppy drives don't seem to respond well to notes outside of this range (especially higher).
- Generally shorter notes tend to sound better, as longer notes are marred by the read-heads changing directions repeatedly.