Is it possible that I broke RX pin when send midi to it? Now midi in not working, trying to fix it several hours. It seems that it recieve something, but like noise. This is what midi ox writes when I press notes on midi keyboard.
"Note off messages" is just right -- generated by arduino.
Other is some kind of noise I recieving with RX pin instead of normal midi messages.
upd: I checked for a board one more time and it seems all ok. Except strange thing, I`ve got a very short beep when touching plus rail and ground, is it ok? And sometimes I have a small hum in a speakers when I checked connections on breadboard with multimeter, that is strange as arduino disconnected from computer, and midi to arduino was on a switched off midi keyboard.