SD Midi Controller
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SD MiDi Controller Instructions
All Versions

Preparing the SD—MMC Memory Card (All capacities are ok, 32Mb, 64, 128, 256, 512, 1Gb and 2Gb)

  1. Insert an SD Memory into your computers card reader or card slot (Marked SD/MMC).
  2. Using Windows Explorer (Right click on the Start button and Select Explorer) You should see the card as another drive letter or called MMC—SD (Drive Letter).
  3. Right click on the card and select Format… A window will open Saying Format MMC – SD.
  4. Change the File System option to FAT (It may say FAT16, but it means the same thing).
  5. Next, click the Start button in the box. A warning box will open!
  7. Click OK and in a second another little box will open saying format Complete. Click OK.
  8. (If you were reading the Software Updates and Procedures, Click Here to return)


Copying Midi Files to the SD—MMC Card ( Midi Format 0)

  1. Your files need to be in the Midi 0 format.
  2. You can convert files using software like GNMIDI that can be downloaded from this website:
  3. It is best practice to create directories on your computer for each SD—MMC card as a backup. You can name the directories accordingly, e.g. Jazz, Mozart, etc
  4. Copy or move your Midi files into these new directories. (If you have converted any midi files with the above software please do not copy the files that end with .bak. They are midi 1 format).
  5. Next copy your files on to the SD Card. NOTE: For an alphabetic play list, click once on the first file and then from the windows explorer toolbar click on “Edit” and then Click on “Select All”. All files should now be blue. Right click on the first file and then Select “Send To” Depending on the type of card reader you have the option will either be MMC - SD (Drive Letter:) or Removable Disk (Drive Letter:)
  6. Insert the card in the unit and switch on.
  7. It will then scan the files and display the first detected file.

Using the SD Midi Controller:

Play: Press Play to play and press Play again to Pause

Stop: Is stop but can be used with the Up and Down button to Skip to next or previous track. To use Skip: Press and keep holding down the Stop button while you press either Up or Down Release both buttons in any order.

Record: Is record

Up: Has a number of functions
Before pressing play you can scroll through tracks upwards one at a time with quick taps or hold down the button to engage the fast scroll function.
When the track is playing you can also Transpose the music.
Tip! To transpose before play, Press play twice quickly to pause the track and then transpose. Press Play again to resume.

Down: Has the functions as above but scrolls down or transposes down.

Left: This is used while a track is playing to adjust the tempo up by 15 steps (Around 75Bpm) from the original midi file tempo. Tip! To adjust the tempo before play, Press play twice quickly to pause the track and then transpose. Press Play again to resume.

Right: Has the same function as above but adjusts the tempo down 15 steps.


Extra Key Functions:

Press Up and Down buttons together to enter the menu or use the Remote Controller (Click here for IR Remote Instructions).
Please Note: Some of these options may not be available depending on software version installed.
We have included all possible options below:

Press the Down button once to view settings:

Drum channel: You can change the dru m m idi channel with the left and right buttons.

Lyrics: You can display karaoke lyrics if the midi file has them, left = off Right = on.

Start Sector: (No Longer Displayed on Ultimate Version) Future development for FAT32.

Mute: You can mute channels any of the 16 midi channels. Use right to select a channel (Scroll though) and press Left to mute or unmute. An X will be displayed for muted channels.

Repeat Mode:
Ultimate Version: Off, Song (Play a single file and stops) Dir Once (Play all files on the card ) NextWait (Plays one file and stops at the next file ready for the play button to be pressed again). All (Play all files on the card and repeats over again) Random (Random playing)

Other Versions: 0 = Play a single file and stop, 1 = Repeat a single file, 2 = Play all files on the card 3 = Play all files and repeat 4 = Random playing.

Backlight: (May or may not be displayed, dependent on model and software version) This feature has been added for future development and is not presently supported in the current units.

MIDI Monitor: Shows a graphical display of midi channel usage (Available on Ultimate Version)
Off is Off, Rec (Shows midi channel activity from another midi device whilst recording).
Play (Shows midi channel activity during play mode). Both (Record and Play monitored)

Manual OSCCAL: ( Oscillator Calibration ) Change at your own risk! Relates to early units!
Although in the menu, all new units have Crystal Timing and changing this number has no effect.
We do make a note this Number this number inside the battery housing. This is factory calculated and set by the chip manufacturer as all microcontrollers run slightly different. It can be used for very fine tuning, a second or two difference over a few minutes! If the Tempo is ok do not change it! Later units will say Crystal.


Software Updates and Procedures:

Whenever a software update is available, we will notify you via email and supply you with a link to our website where it can be downloaded.

  1. See Preparing the SD—MMC Memory Card on Page 1 and follow instructions 1 - 7 Click Here
  2. Copy the update file named MM.BIN on to the card.
  3. Insert the card into the unit an power on. Update takes less than a second.
  4. Switch off and remove card. Software update is now complete.

Best Practice, Tips and known issues.

  1. External Power Supplies 2.1mm, 9v -12v DC, 200mA—500mA, Positive Centre. Although there is reverse polarity protection. Always ensure the supply is correct.
  2. Quality branded SD Memory Cards give better performance and reliability.
  3. Use separate cards for playing and recording
  4. MMC ERROR, This will be displayed if no card is present or occasionally if you have changed tracks to fast.
  5. The display starts scrolling alphanumeric characters when it is switched on? This indicates that the card has been formatted with FAT32
  6. File Data Error is displayed when play is pressed. This occurs when a file is not in midi 0 format.
  7. Tracks playing do not keep to the correct tempo, they speed up or slow down? Please replace the battery or use a mains adapter.
  8. The LCD goes blank when record is pressed! This indicates the battery is very low, although the unit will continue to play tracks (Tempo will be affected) Replace the battery as data errors may occur.

Support and contact information:



Phone: UK : 01952 228979 International: +44 1952 228979

Midi Files
Self Build Kit

Build in Kits