midi in same as midi out?

Other Hardware Audio
1

Hello,

i couldnt find a clear piture wich shows me the midi in shematics,
are they the same as midi out?

thnx

2

check - MIDI Pin Out, Signal names, and MIDI Pinout Description -

also handy, midi test LED - http://community.musiciansfriend.com/docs/DOC-1206 -

3

so IN+ goes into the Arduino input and IN- to ground?
without any 220k Ohm things?

4

You should look at the reference MIDI schematics from the MIDI Manufacturers Association:

--
Beat707: MIDI drum machine / sequencer / groove-box for Arduino

5

sorry, but im totaly noob in these eletrical things:

guess i need a 4n28 optoisolator, like in this picture:
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1187962258

but i still dont get which port is which on my arduino mega

6

A lot of the schematics on this are not correct in that they don't fulfill all the requirement of the specification.
This circuit does:-
http://www.thebox.myzen.co.uk/Hardware/MIDI_Shield.html

but i still dont get which port is which on my arduino mega

Any of the three extra serial ports for example TXD3 and RXD3 will do.

7

So can I just cut the schematics in half and only create the midi in by connecting the 5V to the 680k and PIN6?
Does this board have any advantages?

http://www.watterott.com/de/MIDI-Breakout

cheers

8

Does this board have any advantages?

No it uses the same rubbish circuit as the original post.

9

sorry if i repeat myself, i would use the "correct circuit" just for the midi input,
i did remove the midi out part from the picture.
Will it still work this way?

I have a working midi out, and would like to use one or two more midi outs.

midi_in.jpg
midi_in.jpg696×357 13 KB

10

Yes the MIDI out will work quite happily by itself. You can have several of these on a Mega.