Brotech Electronics Mini Midi Sequencer+ User manual

Brotech Electronics Mega and Mini Midi Sequencer Flyer: 20170813
Brotech Electronics
● Mini Midi Sequencer+
● Mega Midi Sequencer
Tablet Wireless Midi Controller/Sequencer/Player
The Mini Midi Sequencer+ (mMS+) and Mega Midi Sequencer (MMS) are tablet
controlled midi players for use with midi enabled automated musical instruments
such as a band organ. It works with all midi to parallel interfaces. The mMS+/MMS
reads type 0 midi files from a local SD memory card, sequences the midi
information and streams it to an external instrument. The hardware is controlled
wirelessly via Bluetooth linked to an Android tablet using a custom App. The tablet
acts as a remote directory and filename viewer and selector. The file and directory
names are alphabetically sorted in a scrolling list. The custom App has soft keys
for Play Selection, Stop, Play Sequential, Play Random, Tempo change, and more...
Can also play songs in order from a playlist. Edit it yourself or use our simple
companion MMS Playlist Editor App and create a playlist using the tablet.
The system ships with mMS+ or MMS custom hardware, standard 7” Android OS
tablet (8” with HD display optional) with the mMS+/MMS App preinstalled, 4Gig
SDHC class 4 SD memory card, Power Supply, inline switch (customer can use their
own Android tablet).
Mini and Mega Midi General Operation
One adds songs and directories to the memory card using a personal computer and SD memory card adapter. An unlimited number
of directories can be created, and each directory can store up to 1500 songs. After this, the SD card is inserted into the mMS+/MMS
hardware, the system is powered on, and with the App running, the tablet can be linked to the hardware.
When they first link or whenever the directory is changed, all {/Root} directory names and all midi and playlist filenames in the current
directory are uploaded quickly and wirelessly to the tablet (the default boot directory can be set by the user). These names are
presented in a scrollable list on the tablet, alphabetically sorted and separated by directory, playlist, and midi files.
One can scroll through the list and select and play any individual 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). One can also select a playlist and play songs in order.
Besides selecting individual songs, one can also use the App softkeys to play songs automatically in either of continuous Sequential or
Random Play, or press the STOP key to quickly terminate current song play. In autoplay modes, the selection bar on the tablet shows
the next song countdown and the currently playing song name.
The tablet does not actually stream any midi data - it only acts as a remote menu control. All midi files are played from the mMS+/MMS
hardware local SD memory card. The tablet is only used to select which song to play, or what auto play mode to play in, and this is
why the system works so reliably. Once set to playing a song, the mMS+/MMS hardware will continue playing even if the tablet enters
sleep mode or is powered off. Songs never stop midstream, mid-play - unless you press the STOP button.
Whenever a song is playing, one can select the BPM skeleton keys to increase or decrease the playing song tempo. There is also a
control for settings the in-between song delay (silence) during auto play, 0-60 secs.
Besides tablet control, both systems have standalone basic automatic sequential or random play capability, and can play midi songs
without the tablet. This is useful for quick song play test, or anytime one does not want to or can’t use the tablet.
Unique to Mega Midi (MMS)
The MMS hardware also has a 4x20 LCD display, and dedicated rotary control to set the in-between song interval delay manually.
The LCD display shows status messages and currently playing song.

Brotech Electronics Mega and Mini Midi Sequencer Flyer: 20170813
General Hardware, Controls, Ports, Technical
Midi Output Connector: A standard midi compliant 5-pin female DIN connector
SD Memory Slot: Accept standard SD Memory card –depress to seat, depress again to release.
DC Power Jack: DC power jack, 5.5mm x 2.1mm DC barrel plug, center positive polarity. Inline DC switch
Songs and Naming: Maximum midi filename length = 88 characters, and the maximum directory name length = 88 characters; Max
number of songs in any single directory = 1500 (anything above these limits are ignored)
Autonomous play: mMS+/MMS hardware have some rudimentary play capability without requiring a connection to the tablet. This
feature is useful for testing new songs or just playing songs without the tablet
Audible status signals: The mMS+/MMS hardware can play user set status notes through the instrument. This feature provides useful
audible feedback (much like an automobile electric lock and key fob)
Configuration File: The user can change the power-on Default Directory, and set other user selectable features by editing the
MegaMidiConfig.txt configuration file, using a standard text editor.
Bluetooth: Typical Bluetooth range is at least 10M (at least 30feet)
Power: A/C adapter, 9VDC/1A, center positive, 2.1 x 5.5mm barrel plug
SD Memory Card: FAT32 file system, SDHC card up to 32G, tested speed class 4; standard file/directory naming convention
Serial USB Connector (Mini Midi+ only): future functionality
Mega Midi Sequencer - Hardware, Controls, Ports, Technical
Mega only:
LCD Display: 4 rows by 20 columns, displays current directory, current song, and status messages
Rotary Control Song Interval: Set silent time in-between songs during auto play, 0 to 60 seconds
Mini Midi Sequencer+ and Mega Midi Sequencer - Hardware, Controls, Ports, Technical
Mode Play Selection Switch (3 position)
Auto Sequential Play: Automatically play sequentially all songs in the current directory –this mode does not require the tablet.
After the last song completes, it loops back and repeats from the first song
Auto Random Play: Automatically play all songs in the current directory, randomly –this mode does not require the tablet. It
plays continuously until another mode is selected
Tablet Remote: Set to Normal Tablet control mode
Sequencer App - Soft-Key Controls, and Indicators
STOP: This soft-button stops the currently playing midi song
PLAY SEQUENTIAL CONTINUOUS: Play all songs in the current directory, sequentially; after the last song, return to beginning and
starts again (soft-button). Currently playing song is displayed on the tablet selection bar
PLAY RANDOM CONTINUOUS: Play all songs in the current directory, randomly. Keeps playing until STOP (soft-button). Currently
playing song is displayed on the tablet selection bar.
Selection Bar: scrolling list selections that are tapped, are copied to this command bar. When the command bar is then tapped, the
song plays or a directory change is initiated
BPM up/down: Two skeleton buttons to temporarily slow or speed up the currently playing song. The Beats Per Minute speed (BPM)
is displayed on the MMS hardware LCD, and on the Mini Midi - briefly displayed on the tablet selection bar.
DLY up/down (Mini only, Mega has hardware rotary control): The two skeleton buttons change from BPM to DLY in the home screen
when no songs are playing. They are used to set the in-between song interval delay during automatic play.
BTCONNECT: When tapped, reasserts Bluetooth connection; when pressed and held - restarts the Bluetooth link
DIR: Shows the currently selected directory
Bluetooth Status Indicator: blinking green indicates active and connected Bluetooth; red indicates disconnect
Status Messages: status messages appear from time to time briefly on the display and then disappear.
Tablet sleep mode: The mMS+/MMS hardware will continue to play even if the tablet enters power saving sleep mode. Upon
awakening, the tablet automatically reconnects to the mMS+/MMS
Satisfaction Guarantee: We want the Mini/Mega Midi Sequencer product to work for you the way you need it to,
understanding that different applications may require different solutions. The customer has up to 30 days, to evaluate
and try the system, and if it doesn’t meet your requirements you can return it for credit. The items must be returned in
like-new condition. Contact us first for a return authorization (RMA). The customer pays for UPS tracked and insured
shipping. Under these conditions and upon receipt of the returned 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 Min/Mega Midi Sequencer custom hardware is guaranteed free from defects
in material and workmanship for a period of 1 year from date of purchase. In the unlikely event that you experience a
problem, contact us and we’ll try to find a resolution. If the product needs to be returned for repair, contact us first for a
return authorization (RMA). The customer pays for UPS tracked and insured shipping one way. Brotech does not warranty
the tablet. Any tablet warranty or operating problems must be resolved through the manufacturer directly.