I assumed my hypothesis about MIDI ports was nothing new.
I had three ports in my drum machine, one for incoming signals, one for outgoing data that includes my drum machine notes, and a solo port. Typical MIDI-enabled devices have a "Thru" option, but that doesn't include data generated on the instrument. I referred to my port as "Solo."
The drum machine had four serial ports, so it was no problem to use a second, but I don't have extra lines in the rest of my instruments. I wanted to substitute a digital output for the Vcc commonly used but split the outgoing data. The standard output port would be wired in the usual way. I could write the output low while retransmitting, and my solo port would output nonsense (it would be inverted and unrecognizable as coherent MIDI). If the next MIDI receiver included an optoisolator, it would filter out the nonsense anyhow.
I wired my inexpensive Arduino Nano clone with an input isolator and a couple of output ports. I marked the wires of the "Solo" port and connected my power pin to the first digital output. I'll have to test my hypothesis later.
Experimental MIDI ports
The rest of the posts for this project have been arranged by date.
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Completed projects from year 8
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information on this blog, or linked by this blog, is not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property, or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2021-12-27
I had three ports in my drum machine, one for incoming signals, one for outgoing data that includes my drum machine notes, and a solo port. Typical MIDI-enabled devices have a "Thru" option, but that doesn't include data generated on the instrument. I referred to my port as "Solo."
The drum machine had four serial ports, so it was no problem to use a second, but I don't have extra lines in the rest of my instruments. I wanted to substitute a digital output for the Vcc commonly used but split the outgoing data. The standard output port would be wired in the usual way. I could write the output low while retransmitting, and my solo port would output nonsense (it would be inverted and unrecognizable as coherent MIDI). If the next MIDI receiver included an optoisolator, it would filter out the nonsense anyhow.
I wired my inexpensive Arduino Nano clone with an input isolator and a couple of output ports. I marked the wires of the "Solo" port and connected my power pin to the first digital output. I'll have to test my hypothesis later.
The rest of the posts for this project have been arranged by date.
First time here?
Completed projects from year 1
Completed projects from year 2
Completed projects from year 3
Completed projects from year 4
Completed projects from year 5
Completed projects from year 6
Completed projects from year 7
Completed projects from year 8
Disclaimer for http://24hourengineer.blogspot.com and 24HourEngineer.com
This disclaimer must be intact and whole. This disclaimer must be included if a project is distributed.
All information on this blog, or linked by this blog, is not to be taken as advice or solicitation. Anyone attempting to replicate, in whole or in part, is responsible for the outcome and procedure. Any loss of functionality, money, property, or similar, is the responsibility of those involved in the replication.
All digital communication regarding the email address 24hourengineer@gmail.com becomes the intellectual property of Brian McEvoy. Any information contained within these messages may be distributed or retained at the discretion of Brian McEvoy. Any email sent to this address, or any email account owned by Brian McEvoy, cannot be used to claim property or assets.
Comments to the blog may be utilized or erased at the discretion of the owner. No one posting may claim property or assets based on their post.
This blog, including pictures and text, is copyright to Brian McEvoy.
2021-12-27
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