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Brotech Electronics Mini Midi Se and Mega Midi Sequencer User Manual 2017-08-13 

Active  Communication  Interruption:  This  system  relies  upon  active  communication  between  the  tablet  and  the 
mMS+/MMS  hardware.  If  the  communication  link  is  broken  during  directory  change  command,  the  App  or 
mMS+/MMS hardware or both may freeze, and either or both may have to be reset or restarted. If a directory change 
has been initiated, let the process complete before changing the Bluetooth status, such as putting the tablet to sleep.  
Filename Transfer Speed: Transferring filenames to the tablet should take approximately 4 seconds per 500 songs 
with average filename length of 37 characters. If the transfer takes much longer than this, try reformatting the SD 
memory card, using FAT32 file system. 
Tablet and mMS+/MMS synchronization: After linking the tablet and MMS+/mMS hardware, if the hardware is 
powered off and on again, even though the bluetooth may relink automatically, it will become unsynchronized with 
the tablet, and so the tablet list may not reflect correctly files on the SD memory card. To resynchronize, select the 
/{ROOT} directory on the tablet, or press and hold the BTConnect button to relink the Bluetooth from the App start 
screen. 
mMS+ Status LED: The LED on the mMS generally indicates power on (red) or power on and bluetooth linked 
(blue). The LED blinks status information, on boot – blink 2, then 3, then 4 times, as it initializes. When linked to 
the tablet, each soft-button press causes the LED to blink indicating active connection. Repeated pattern blinking 
during boot means there is an SD memory card error: check the card and correct.      
       

 
mMS+/MMS Midi Sequencer Configuration File 

   The  mMS+/MMS  can  use  a  configuration  file  to  set  certain  defaults.  The  configuration  file  filename  is, 

MegaMidiConfig.txt

, and must be located in the {Root} directory  only. If the configuration file is missing, then 

defaults are automatically used.  
   The format of this file is very specific; each keyword must be followed by -> and then the variable, terminated 
with a semicolon. Any text following a semicolon is ignored. If you are using the configuration file, but want some 
features to use default settings, you can force the use of a default by beginning the assignment line with a semicolon. 
Only edit the configuration file with a basic text editor that does not include formatting, such as Notepad. 
 
   The configuration can set the power-on default directory, such as “MAIN_DIR”. There are also audible status 
cues available that the mMS+/MMS has a connected instrument play during change directory and upload file names, 
SD memory card error, and midi file error. Each cue uses a single playable note on the instrument.      
 

Summary of Contents for Mega Midi Sequencer

Page 1: ...Brotech Electronics Mini Midi Sequencer and Mega Midi Sequencer User Manual 2017 08 13 Brotech Electronics Mini Midi Sequencer Mega Midi Sequencer Tablet Wireless Midi Controller Sequencer Player ...

Page 2: ...rotechelectronics com Mega Midi Sequencer Hardware Controls The Mega Midi Sequencer system consists of custom hardware MMS and custom mMS MMS application App running on a standard Android enabled tablet The following describes the MMS hardware controls and features Play Mode 3 Position Rotary Control Auto Sequential Play Automatically play songs sequentially in the currently selected directory Thi...

Page 3: ...ease DC Power Jack The DC power jack is located on the left side on the MMS and front on the mMS It accepts 5 5mm x 2 1mm DC barrel plug center positive polarity USB mMS only future feature Power Indicator and Bluetooth Status LED mMS only When power is applied this LED lights and indicates status red power on no Bluetooth connected blue Bluetooth connected blinking red and blue various operating ...

Page 4: ...the SD Memory card Root and midi song file names in the currently selected directory The user scrolls through the list vertically to select songs to play or a directory to switch to Selection Bar When one taps on a scrolling list entry it is copied to this yellow bar When the bar is then tapped the bar turns green showing it s active and the song plays or the hardware changes directories and uploa...

Page 5: ...nd songs to the memory card using a personal computer and SD memory card adapter Multiple directories can be created in the Root directory and the user can add midi files to these directories One can have a basic directory such as MAIN_DIR where all songs are kept or theme named directories such as PATRIOTIC where all patriotic songs are kept TEST_DIR where test midi files might be kept and etcete...

Page 6: ...ling list on the tablet with directory names always listed first any playlist names listed second and midi file names shown last One can scroll through the list and select and play any song by tapping on it In a similar way one can select a new directory by tapping on it equivalent to changing directories on a computer Whenever a new directory is selected a new scrolling list is automatically crea...

Page 7: ...e of 1 BPM plus or minus and is briefly display on the selection bar The tempo change is not permanent and only affects the currently playing song If a tempo change has been made and the song is stopped and started again the original tempo is used Auto Play and Tablet Sleep Mode When the mMS MMS hardware is set by the tablet into any of the playing modes play a song Random or Sequential Continuous...

Page 8: ... MMS can play songs in a playlist that the user can create From the scrolling list select an existing playlist and tap on it and it is copied to the yellow selection bar Tap on the bar and the playlist opens and a new scrolling list appears showing all of the files in the playlist In addition the lower right directory field now shows the playlist filename as the selected directory LST some_list_fi...

Page 9: ...red on again while the tablet App is running press and hold the BTConnect button to go to the Bluetooth link screen This button may also be tapped once quickly to reassert the Bluetooth connection When tapped lightly it verifies Bluetooth link and if disconnected tries to reestablish the connection Removing the SD Memory card while operating or playing a song Whenever the SD memory card is removed...

Page 10: ...tatus LED The LED on the mMS generally indicates power on red or power on and bluetooth linked blue The LED blinks status information on boot blink 2 then 3 then 4 times as it initializes When linked to the tablet each soft button press causes the LED to blink indicating active connection Repeated pattern blinking during boot means there is an SD memory card error check the card and correct mMS MM...

Page 11: ...Brotech Electronics Mini Midi Sequencer and Mega Midi Sequencer User Manual 2017 08 13 Sample Configuration File ...

Page 12: ...aying notes are silenced using any of 3 All Notes Off modes 1 normal manual mode 2 midi command 120 All Sounds Off 3 midi command 123 All Notes Off If either of 2 or 3 can be used there is a slight efficiency gain silencing all notes Some midi to parallel controllers might employ these built in midi commands Default is 1 manual DeclencheNote During an abnormal STOP mid song play it might be import...

Page 13: ...tly in Sequential Play mode RP Random Play MMS is currently in Random Play mode P Playing MMS is in Tablet Remote play mode NF File not found The MMS cannot located the file file is Not Found This error message may be accompanied by an error tone CD change directory The current directory being processed D open directory fail The MMS cannot find or open the named directory This error message may be...

Page 14: ...eturned hardware a full refund will be provided less the shipping charges The tablet cannot be returned if it has been registered in an end user Amazon account In that instance we will only refund the cost of the custom hardware Product Warranty The Brotech Electronics Mini Mega Midi Sequencer custom hardware is guaranteed free from defects in material and workmanship for a period of 1 year from d...

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