Midi

Status
Not open for further replies.
...also the sparkfun schematic puts a resistor on the tx line... do I need it/why do I need it?
 
PCBWING said:
I guess you say this port's 2nd pin?
Click to expand...

Yes, does it need to be connected to ground? If not, why does the arduino tutorial suggest it?

And why is there a resistor on the TX line in the sparkfun schematic?
 
Last edited:
I feel you pointing the OPTO DARL 6N138S 's output, not the arduino's. If connect to arduino directly, those two are the same.
 
Status
Not open for further replies.

Similar threads

MIDI-Keyboard scanner - error in supply / HF decoupling circuit?
Replies
2
Views
2K
Sinedup
K
playmidi problem in miditoolbox (matlab)
Replies
1
Views
945
dougy83
D
P
MIDI protocole vs others in HMI + mecatronics
Replies
5
Views
911
Pasto11
P
Help for Midi decoder
Replies
7
Views
6K
Jon Wilder
F
MIDI buttons, HELP!
Replies
0
Views
1K
frodo.jedi
F
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…