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if some of the metal pins fell out they are probably not needed... there are only 3 holes used on a midi jack... if you look at the jack as if it was a smile, its teh bottom middle 3.

So the mode that you got the arduinoboy to dance...
when switching the modes, its the mode right before that one because in order its: LSDJ Slave, LSDJ Master, LSDJ Keyboard, Nanoloop sync, mGB mode...

also be sure its Piggy box -> arduinoboy MIDI IN (i know its obvious)

just to be clear, i meant a delay of 60 and a multiplier of 1... if it stil has issues and the batteries are fine, up it to maybe 120 ... basically find a number where its working and then slowly decrease it from there so you can get the lowest/shortest delay without issues.

if you using the editor, read the description under the box.

its a delay setting, the higher the number, the less arduinoboy will communicate to the gameboy. if notes dont play or bad notes happen, raising the number will help. the more cpu your song uses on a dmg, the higher that numbr needs to be. i'd say changing it to 60 - 100 or so with a multiplier of 1 should be more then fine.

the total delay your looking at is the bit delay multiplied by the multiplier.  so 60 & 1 = 60 .... 60 & 10 = 600 .... 60 & 100 = 6000 (hehe)

also if you having really bad issues, you should check your battery or use a external power supply for arduinoboy.

well if the lights on the aboy are blinking thats a good thing... you need to make sure the arduinoboy is in the right mode and lsdj is in the right mode, if you are sure of that, then check your wiring for the gameboy jack and the arduino- that is the only point of failure on the gameboy-side of the electronics.

change these:

  0x00, //force mode (forces lsdj to be sl)
  0x00, //mode

to these:

  0x01, //force mode (forces lsdj to be sl)
  0x00, //mode (<- whatever mode # you want)

These are the modes:

    case 0:
      modeLSDJSlaveSyncSetup();
      break;
    case 1:
      modeLSDJMasterSyncSetup();
      break;
    case 2:
      modeLSDJKeyboardSetup();
      break;
    case 3:
      modeNanoloopSetup();
      break;
    case 4:
      modeMidiGbSetup();
      break;
    case 5:
      modeLSDJMapSetup();
      break;
    case 6:
      modeLSDJMidioutSetup();
      break;

also you want to set this to true:

boolean alwaysUseDefaultSettings = false; //set to true to always use the settings below, else they are pulled from memory for the software editor

... or if you have midi in and out, just use the editor.

Some videos I did last year durring testing:

LSDJ MIDI out with Ableton Live demo:

LSDJ MIDI out using a table to send arps:

LSDJ MIDI out with a SP (also showing off new LSDJ color pallet "80s" (chipmusic.org colors) )
- also shows M U T E working

LSDJ MIDI out polyphony demo... the arduinoboy waits for about 5ms before sending a note off command of the same channel, to allow polyphony

New LSDJ midi in mode (SYNCMAP/LIVEMAP)
LSDJ patterns are being controlled via MID Notes from Ableton Live

the only bug here is that the song name doesnt work in the url- which i'm looking into now.

Our system is sophisticated in how it deals with mp3s, nothing is stored as the file name you provided- it is renamed as /year/month/user-name_album_track-number_track-name.mp3 to keep our backend pretty and uniform. The file is also md5 hashed (basically gets a set of characters that represent the uniqueness of the file) if you just rename a mp3 and upload it, the system will know that the file already exists.

...
also this: