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Type: Posts; User: jmercer

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    Not sure if USB multichannel has advanced; read...

    Not sure if USB multichannel has advanced; read this:

    https://forum.pjrc.com/threads/48777-More-than-one-USB-input
  2. Depends on what you need of course. I'm having...

    Depends on what you need of course.

    I'm having good experiences with the SparkFun Battery Babysitter. Good documentation. It's full featured and seems a solid product. Time will tell. It can...
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    CS42448 Audio Board BOM Replacements

    Hi,

    I'd like to build Paul's multi-channel board.

    https://oshpark.com/shared_projects/2Yj6rFaW

    Looking at DigiKey shows some of the caps in the BOM are discontinued/unavailable.
    ...
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    I see. Fortunately I have room if I choose to go...

    I see. Fortunately I have room if I choose to go that way. thanks Paul
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    thanks for your response. Must stop nodding...

    thanks for your response.

    Must stop nodding off in class....
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    Thanks for your response. I think it's best to...

    Thanks for your response.

    I think it's best to isolate the 3.5 jack as a quick workaround.

    I have reservations about the VDC, however.

    On any given device, many end users employ the...
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    Inverting pin signal for bi-color led

    I'm sure this is documented somewhere, but I can't find it...

    Looking at picking up a bi-color led like this:

    https://www.mouser.com/ds/2/26/Apem_09152017_Q6-1158530.pdf

    The color is changed...
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    Filtering VGND DC

    I installed my working prototype in an aluminum box before I realized the metal barrel 3.5 jack is shorting GND to VGND.

    As I understand it, the problem with VGN is that it has DC present.

    Is...
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    Thank you for the detailed response, Paul. ...

    Thank you for the detailed response, Paul.

    That's way beyond my current skill level !!!

    J
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    More than one USB input?

    Hello,

    Can a teensy w/ audioBoards support two USB inputs?

    Attempting this:

    12456

    Currently testing two audioBoards (with quad mods) with a teensy 3.2.
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    Okay, progress! Found dap_bass_enhance.ino...

    Okay,

    progress!

    Found dap_bass_enhance.ino which had the answer. New simple sketch:



    #include <Audio.h>
    #include <Wire.h>
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    AUDIO_INPUT_LINEIN Issues

    Having a problem getting Line Inputs to work.

    iPhone>LineIn

    T3.1, building as USB Audio.

    Expecting to find a signal passed to the headphone jack.

    No output at all.
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    Ok, missed that. :-) I'll try again with the...

    Ok, missed that. :-)

    I'll try again with the board installed.
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    I finally got around to reviewing the WM8731 data...

    I finally got around to reviewing the WM8731 data sheet.

    I see the device has headphone outs that are unused on your board.

    Are these disabled when using the line outs, or could these be used...
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    Teensy as outboard effects processor

    So while I'm waiting for my new Teensy 3.6 and Audio Shield to arrive, I decided to try to use my Teensy 3.1 as outboard effects processor.

    Attempting to loop audio from Logic Pro X into Teensy...
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    Thanks for your response! I have a headphone...

    Thanks for your response!

    I have a headphone amp, but I like to add a HP jack into my prototype at some point.

    I see that some of the pins can be shared.

    Is it possible/recommended to run...
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    Is the Guitar Audio Board compatible with the...

    Is the Guitar Audio Board compatible with the PJRC Audio Board?

    Planning to use a Teensy 3.6 in project.

    Looking to add a headphone out....
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    T3.1 WIZ820io Safari Webserver Crash

    Hello to everyone,


    I'm hoping someone could replicate or shed light on my problem.

    Hardware: T3.1, WIZ820io w/ PJRC Adaptor, Mac computer. I'm running a straight cable directly from the mac...
  19. Old thread, but I ran into the 60 byte limit as...

    Old thread, but I ran into the 60 byte limit as well. It's not important for my application since all messages are likely to be <60, but the convenient testbed I was using sent 2060 bytes. I agree...
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