Long searched, but has found nothing on a subject
show the connection scheme please
I think that the scheme should be about such as on a picture
That looks about right to me.
If you want to check it, maybe see if you can find schems for the other DIY encoders, like rasteri’s or sashas. I would assume that you’ve found the other threads about mouse encoders already, and they didn’t have any schems? It would be cool if you could tag them all, so that those threads lead to your answer 
I think the best thing to do here, is to get the parts, and breadboard it up.
I have connected encoder according to the scheme in the second drawing and began to receive such signals from a kernel:
00000000313896 ms | [B0 20 3F] Channel 1: CC LSB 0 (Bank Select) value: 63
00000000313956 ms | [B0 20 3F] Channel 1: CC LSB 0 (Bank Select) value: 63
00000000314016 ms | [B0 20 3F] Channel 1: CC LSB 0 (Bank Select) value: 63
00000000314076 ms | [B0 20 3F] Channel 1: CC LSB 0 (Bank Select) value: 63
00000000314136 ms | [B0 20 3F] Channel 1: CC LSB 0 (Bank Select) value: 63
00000000314197 ms | [B0 20 3F] Channel 1: CC LSB 0 (Bank Select) value: 63
00000000314257 ms | [B0 20 3F] Channel 1: CC LSB 0 (Bank Select) value: 63
00000000314317 ms | [B0 20 3F] Channel 1: CC LSB 0 (Bank Select) value: 63
00000000314376 ms | [B0 20 3F] Channel 1: CC LSB 0 (Bank Select) value: 63
00000000314436 ms | [B0 20 3F] Channel 1: CC LSB 0 (Bank Select) value: 63
00000000314496 ms | [B0 20 3F] Channel 1: CC LSB 0 (Bank Select) value: 63
00000000314556 ms | [B0 20 3F] Channel 1: CC LSB 0 (Bank Select) value: 63
00000000314616 ms | [B0 20 3F] Channel 1: CC LSB 0 (Bank Select) value: 63
main.c
MIOS_ENC_TABLE {
MIOS_ENC_ENTRY(7, 0, MIOS_ENC_MODE_NON_DETENTED), //
MIOS_ENC_EOT
};
...
void Init...
for(i=0; i<2; ++i) {
// available speed modes: SLOW, NORMAL and FAST
MIOS_ENC_SpeedSet(i, MIOS_ENC_SPEED_SLOW, 2); // encoder, speed mode, divider
}
...
void ENC_NotifyChange....
MIOS_MIDI_BeginStream();
MIOS_MIDI_TxBufferPut(0xb0); // CC at MIDI Channel #1
MIOS_MIDI_TxBufferPut(0x20 + encoder); // CC# is 0x20 (32) for first encoder
MIOS_MIDI_TxBufferPut((0x40 + incrementer) & 0x7f);
// this "40 +/- speed" format is used by NI software and some others
MIOS_MIDI_EndStream();
first scheme are work
second scheme will damage photo-transistor
nominal of resistors: 510 Ohm (for diode), 10 kOhm (for transistor)