6N138 UART 3.3 to 5v unidirectionnal level shifter

[Ganjanouille]

Hi folks!

I'm trying to do some level shifting for interfacing with midi instruments.

I got this 6N138 lying around and want to try to achieve my goal with that.

I draw this schematic, could someone tell me if it will blow my raspberry away??!! Or my midi intruments?!

https://www.dropbox.com/s/agwjel2zt1ymj ... 2.jpg?dl=0

I also have some 4N35 lying arround. Just in case

Thank's for the help!

[StuartF]

Midi out does not require opto-isolation, only midi in.
So a transistor or mofet acting as a switch will do the conversion.