Orgautomatech MIDILECTOR S User manual

MIDILECTOR S & SR
Midi file reader / recorder on SD card
User manual (complete kit
Introduction
Midilector S is a Midi file reader (and recorder for Midilector-SR) on SD card
intended to drive a midi decoder (as Midi_2org_64 for example). He can o viously
pilot any midi electronic instrument (piano, synthesizer, etc.)
It is delivered , without any case. It has een designed to e the most compact
possi le and to e integrated into an organ panel or any other automatic music
instrument. The uyer is thus considered for having the technical knowledge
necessary for this.
Midilector is ased on the Simon Lehmayr's open source project, Mr Midi:
www.mikrocontroler.net
Main features
•Play any standard midi files (format 0) from an SD Memory card. Files
may e organised into folders a le to contain 255 songs each.
•Support any standard SD card from 128M up to 2 GO. A 128M card can
contain more than 2000 standard midifiles.
•Multi tracks 16 channel
•Board size: 116*52 mm
•24*2 LCD screen with ack light (optional utton to switch off the light

and save attery).
•Tempo variations (+ or - 5%) while playing with 2 uttons
•Transpose while playing (+ or – semi-tone).
•Possi ility of synchronisation: crank rotation can drive song start, tempo
and stop.
•Lyrics on screen when present in the file (Karaoke)
•Designed to e fitted into any musical instrument panel or case.
•Powered y any DC current 8 up to 18 volts
Midilector-SR is the version with recording capa ilities. It comes with a second midi
socket for input midi datas, and a utton for recording option.
Electric wiring
Very easy: + and – are marked on the oards. Don't worry, there is a polarity
protection. You can use either 9 volt attery or any DC power source from 8 up to
24 volts.
Here the way to link screen and main PCB :
You can adjust the contrast with the small potentiometer near the display connector.
Wire the key oard this way only :

Midi wiring
Here is the right way to wire the Midi OUT external socket.
And the Midi IN external socket (Midilector SR)
The Midi sockets are to e fixed onto your instrument panel.
Wire a 5 pin DIN ca le (midi standard) etween your Midilector midi output and
your decoder oard or electronic instrument MIDI IN socket
To record, you need to wire a midi ca le etween the Midi out of your Midi
key oard or any other instrument and the Midi In of Midilector SR. There is no Midi
Thru, the entering datas are not displayed on Midi Out.
SD card preparation
Midilector S/SR arrives with a Sd card ready for use.
If you want to use another card (maxi 2 GO), you must first prepare it. On your
computer make sure it is formatted in FAT 16
One suppose the midi files has een adapted to your instrument. They must e saved
in format Midi 0. You can find on the internet freeware a le to change any midi
format to another.
Transfer your files to the card. Just remem er Midilector will read them in the order
they have een recorded.

The good way to insert the card into the reader!
Functioning
If you switch on Midilector efore inserting SD card you see this screen:
So, insert a card and toggle the power switch. The connector is a «push - push» like
on your camera. If you have prepared your card as said efore, you should see the
first file or folder:
«DIR» indicates a folder. Change folder with «UP» and «DOWN», enter with
«RIGHT»
Second line indicates num er of files/folders (here folder #5 on 5) et the size: 0000
indicates a empty folder
By entering a folder you can discover files. Change file with «UP» or «DOWN».
This file is the #2 on 46
Push the «PLAY» utton:

Song starts: On second line you have:
•Tempo : 100% = normal
•Transposition : unused except if you have added the « REC » utton (see
further in this document)
•Time in minutes and seconds from start
To increase tempo use the « RIGHT » key:
To decrease tempo use « LEFT » key:
To decrease tempo use « LEFT » key: se.
To stop, push on « STOP » utton. At this moment, Midilector send a « all note off »
(CC123) and a « all sound off » on all the 16 channels to e sure everything is
stopped. Be sure you decoder oard is up-to-date with these controls, that's not
always the case for some old models.
If you have lyrics in your file and have allowed them, here is what you can see:
Please, note to not switch off efore to stop the song.

Set-up:
By pushing on « UP » and « DOWN » simultaneously you come in the menu: there
are 10 pages, here is the #1
Here you can set the midi channel for drums, not important, you can leave it. Only
used if you want to use the transpose function.
•# 2 :
Switch on with « RIGHT » utton if you want to allow the lyrics on the screen.
Your file must e prepared first. You can transform any karaoke file into a midi one.
Just change the .kar in .mid.
•# 3
You can mute one or more channels. Mute with “RIGHT”, un-mute with “LEFT”,
selection y “UP or “DOWN”. No need to change any thing here is your files are
well prepared in advance.
•#°4
Repetition: OFF means the player reads the song and stops. It can also repeat the
song (SONG), all the folder songs once (DIR once), all the song on the card (ALL)
or random (RANDOM) . Select y « RIGHT » or « LEFT ».
Let the #5 and #-6 page as there are.

•#7
Speed control. Let it Off if you don't have installed any sensor on your crank. If you
set ON, when you'll press the “PLAY” utton, Midilector will wait for the
impulsions from the crank sensor. The tempo will follow the speed of the crank. The
song will stop if you stop cranking. In you set “PA”, the song will start when you
turn and stop when you stop turning ut wont follow the speed of crank.
•#8
Signal frequency from the crank sensor in BPM. Set here your “normal” speed. If
you turn faster, the tempo will increase, if you slow down, tempo will decrease. Let
it as it is if you don't use synchronisation.
•#9
That's the minimum speed under which the song stops. Let it if you don't use
synchronisation
•#10
Num ers of pulsations from the crank sensor efore starting. Needed for fulling the
reservoir. Let it if you don't use the synchronisation.
Leave the menu y « STOP ». Midilector has got a good memory, it will remem er
your set-up even after a night sleeping !
Back light
The screen is normally ack-lit. To save your attery, you can install a switch to
switch off it when it is useless, outside for example. Just connect 2 threads from the
switch to the marked " ack light " pins on the oard

If you don't have got switch, that exists as optional at Orgautomatech's, with the
ca le and the adapted connector.
Synchronisation
For synchronisation you just need a reed relay like this one:
This tiny thing is sensitive to magnetic field, so, if you approach a magnet close to
it, it will switch on. If you manage to install it near your crank organ and glue on this
one a small magnet, the relay will send an impulse on each crank turn. You have to
wire the two ends of the relay to the “RC”pin and the “Gnd” pin on the PCB, (no
polarity) and set the synchronisation menu (#7 to #10) at your need.
For etter speed sta ility, you can put to magnet on your crank ut think to dou le
the BPM in the menu #8.
Recording
Midilector-SR version gives you the a ility of recording midi datas.
After pressing “RECORD” , “ready for Rec” will appear. Recording starts with the
first midi event. Then, the recording time is displayed too.
To end and save the recording, press “STOP”
To a ort and throw away the recording, press “RECORD” again.
The file will e saved with the name: MM001.mid. The num er will count up, no
files are over writen.
Please note Midilector-R saves the files at the root of the SD card. If you want to
edit and put the files in folders, use your computer.
Remem er the order the files will e read is the order they have een recorded.
Transposition
You can transpose the music while playing y pressing “REC” and “UP” or
“DOWN”.
Off course, your instrument is supposed to support this transposition....
Guarantee
Midilector as all Orgautomatech oard is guaranteed 1 year against any
manufacturing defect. Every oard is tested efore sending. The SD card connector
is of professional quality and the electronic is "ad hoc". We tested numerous SD
cards including certain ought in supermarket, with no pro lem at all. I know a very
few may have pro lem, so I advise you to use rather a good rand card to assure
compati ility.

Quick repair guide
This message means there is no SD card or non-recognized card.
Insert another SD card, good rand prefera ly and toggle power.
If a song refuses to start, it's pro a ly ecause it's not a format Midi 0. Try « midi
converter » in Google.
If you have to push twice on “PLAY” to start the song, and are not a le to control
the speed with “Right” and “Left” uttons, set the speed control (menu #7) to OFF
y pressing as many times as needed the “LEFT” utton.
Midilector does't like to e switched off while playing a midifile. When this
happens, you'll perhaps have to re-set up the menus #4 (repeat) and #7
(Synchronisation).
Have fun !
Christian Blanchard
Orgautomatech
113 rue Champommier
79000 Niort
FRANCE
33(0 9 63 45 61 45
[email protected]
SIRET 399 479 138 00022