ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong
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Re: ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong
Hello there and thnks for the topic,
in order to remove the caps, would you hint me to locate them?
I can't find a pcb layout, so in the moment I am stuck.
in order to remove the caps, would you hint me to locate them?
I can't find a pcb layout, so in the moment I am stuck.
Re: ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong
I’m interested in this topic as well.
Dana,
Does the AI-Thinker board have these parts?
Bob
Dana,
Does the AI-Thinker board have these parts?
Bob
Re: ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong
It's true the PCB has no silkscreen; fortunately, the "ESP32-LyraT Getting Started Guide" contains a link to a component layout:Horst Schlawutzke wrote: ↑Wed May 20, 2020 4:54 amHello there and thnks for the topic,
in order to remove the caps, would you hint me to locate them?
I can't find a pcb layout, so in the moment I am stuck.
https://dl.espressif.com/dl/schematics/ ... layout.pdf
Locate and remove C62, C64, C65 and C66. It is perhaps easiest to find these initially using text search in the component layout PDF.
Cheers,
Dana
Re: ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong
This image may help.danak6jq wrote: ↑Wed May 20, 2020 3:33 pm
It's true the PCB has no silkscreen; fortunately, the "ESP32-LyraT Getting Started Guide" contains a link to a component layout:
https://dl.espressif.com/dl/schematics/ ... layout.pdf
Locate and remove C62, C64, C65 and C66. It is perhaps easiest to find these initially using text search in the component layout PDF.
Cheers,
Dana
https://drive.google.com/open?id=1XFEvd ... l11c7Yah-F
Cheers,
Dana
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- Posts: 3
- Joined: Mon Nov 25, 2019 2:39 pm
Re: ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong
Aw, you'll make me blush! I'm glad that I could help.Horst Schlawutzke wrote: ↑Thu May 21, 2020 8:02 pm
Dana, my hero!
(probably the best answer I ever got from a forum)
regards Horst
Cheers,
Dana
Re: ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong
Any update on this issue? I am now running into this problem using aux in for a project I am working with. Removal of the specified capacitors helps but doesn't eliminate the issue.
https://github.com/ns96/cassetteflow
https://github.com/ns96/cassetteflow
Re: ESP32 LyraT v4.3 Aux input circuit is highly confusing and surely wrong
There is another pretty huge issue with the standard passthru example which also affects audio quality for some reason, and hasn't been fixed for years...
Basically the audio is only passed through the audio codec mixer and never even reaches the ESP32. This is what fixed it for me:
https://github.com/espressif/esp-adf/is ... -578473334
Basically the audio is only passed through the audio codec mixer and never even reaches the ESP32. This is what fixed it for me:
https://github.com/espressif/esp-adf/is ... -578473334
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