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  1. Available Teensy 4.0 pins when Audio shield D attached

    I have an audio shield (D) soldered pin for pin to a Teensy 4.0 in such a fashion that the pins go down thro to the breadboard.
    Which Teensy pins, if any, are not interfered with by the audio shield...
  2. I took advice from Houston mainly (over several...

    I took advice from Houston mainly (over several weeks) but also read the documents written by Paul Stoffregen and I now have a working development system though which I will eventually connect my...
  3. Direct read of ADC and transmit to DAC on Audio board

    I am trying to locate a dataset in the libraries which will give me access to a dataset containing the most recent 16 bit ADC sample from the audio board L &R line inputs. If there is a procedure...
  4. Paul at Houston and Paul at JPRC, Houston, Thanks...

    Paul at Houston and Paul at JPRC, Houston, Thanks for the loan of the board pair. They worked first time with both guitar and stereo passthro'.
    So the software worked ok and the fault was due finger...
  5. defragster. Yes I invoked Arduino.exe from what I...

    defragster. Yes I invoked Arduino.exe from what I called the X folder on both machines using a link on the workspace. In section 2 it was, of course, the windows version of the Zip. Previously during...
  6. Paul, Paul in the UK, defragster,houtson, WMXZ et...

    Paul, Paul in the UK, defragster,houtson, WMXZ et al.
    Many Thanks for your advice for my audio problem.
    I think that I have it set up correctly now but am waiting for the loan of tested audio...
  7. Dear defragster, This is the end of the verbose...

    Dear defragster, This is the end of the verbose build trail which I get on compiling Part_01_02_hardware_test :

    .
    .
    .
    Multiple libraries were found for "SPI.h"
    Used: C:\Arduino
    Multiple...
  8. Defragster. That link time printout thatís you...

    Defragster. That link time printout thatís you gave me will be a very useful diagnostic. Thanks. I think you have hit the nub of the problem !
    Although I used to teach C for the UK open university...
  9. Actually commenting out the #include statements...

    Actually commenting out the #include statements was what I did before electing to include only audio.h. The reason for doing that was that, at one stage, I was producing compilation failure due to...
  10. If my memory serves me correctly then Audio.h...

    If my memory serves me correctly then Audio.h alone contains all the :
    #include <*.h> statements to bring in the relevant headers ?
  11. Wmxz. Thanks for the advice to install ALL...

    Wmxz. Thanks for the advice to install ALL libraries. I will indeed do that. It did however compile. At this time, after trying all suggestions with no +be outcome, I have returned T4+Audio to pjrc...
  12. Reply from Brian 44

    Houtson & Paul, I use a PC Win 10, 1.4.10 Version of Arduino overwritten with Teensyduino 1.48 for windows selecting ONLY the Audio library. The other libraries are unchecked.
    I tried the...
  13. Paul, I've bought 2 audio boards, 3 Teensy 4.0 's...

    Paul, I've bought 2 audio boards, 3 Teensy 4.0 's and numerous headers from both Cool Components and PJRC Nothing works - even removed from the breadboard. Is there anyway that I could make a final...
  14. Problems setting up Teensy D Audio board on Teensy 4.0

    I have connected my Teensy 4.0 to an Audio shield Revision D
    and I get no headphone output using the recommended guitar test.

    The Audio shield is mounted on top of the Teensy 4 using female...
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    Fragster. Thanks for your help. I have all the...

    Fragster. Thanks for your help. I have all the new components purchased for the Teensy 4 + Audio. Have been using the GUI tool and reading the documentation on the Audio chip itself but cannot find a...
  16. Problems using Teensy 4.0 Audio Lib and GUI

    I am having problems setting up a Teensy 4.0 with an audio shield
    to use the GUI software.
    This is what I have done in sequence:

    1. Downloaded the zip file for Arduino 1.8.10 - archived it
    2....
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    Thanks defragster, Yes. I think thatís the way...

    Thanks defragster, Yes. I think thatís the way forward for me. I dismissed the tutorial previously, as being trivial and not the way I need to process my guitar project, however I can see that if I...
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    Reading line I/o on audio shield

    I wish to read any line input (using teensy 4.0 £ from the audio shield and then write it either to the line or headphone output or both. Are there any primitive functions in C to do this ? Does a...
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    Access to analog input and headphones

    Are there primitive functions in the audio lib (or outside it) which will allow me to read single 16 bit values from the line inputs of the audio shield into the Teensy 4.0 and also the complementary...
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