This was the last day I worked on the EWC_Mobile project. I plan to return soon, but another project would not get out of my head.
I looked deeper into why I could not get serial feedback on an ESP32-S3, and most people solved their issues, but none of them, that I could tell, were using MIDI over USB. I started with an example that included MIDI over Bluetooth since it already included serial functions. I modified the example to print a counter periodically, and the simple sketch would print over serial, but I could not detect a Bluetooth device. I stripped away everything in the sketch and uploaded that to confirm that it could still output serial, and it did, which meant that something in my code was blocking it, probably MIDI.
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
Completed projects from year 9
Completed projects from year 10
Completed projects from year 11
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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.
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This blog, including pictures and text, is copyright to Brian McEvoy.
2026-07-21
I looked deeper into why I could not get serial feedback on an ESP32-S3, and most people solved their issues, but none of them, that I could tell, were using MIDI over USB. I started with an example that included MIDI over Bluetooth since it already included serial functions. I modified the example to print a counter periodically, and the simple sketch would print over serial, but I could not detect a Bluetooth device. I stripped away everything in the sketch and uploaded that to confirm that it could still output serial, and it did, which meant that something in my code was blocking it, probably MIDI.
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| Serial can work with this controller |
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
Completed projects from year 9
Completed projects from year 10
Completed projects from year 11
Completed projects from year 12
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.
2026-07-21
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