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Thread: Help with connecting Teensy 4.1 to Rev C Audiosheild

  1. #1
    Junior Member
    Join Date
    Jan 2023

    Help with connecting Teensy 4.1 to Rev C Audiosheild

    can someone please tell me which of the pins i need to connect to the audiosheild from the teensy?
    i have the 3v and ground connected as usual and the following

    i hope this makes sense to someone.


  2. #2
    Senior Member+ defragster's Avatar
    Join Date
    Feb 2015
    At least one of those pin #'s look odd compared to the posted/expected pin numbers for Teensy 4.1?
    Try showing a mapping with Pin function to make the list readable for pin intended use:
    T_4.1 #13 <> AShield #14 :: SCK
    T_4.1 #12 <> AShield #12 :: MISO
    T_4.1 #11 <> AShield #7 :: MOSI
    The Rev C for T_3.x can work but needs manual wiring (not direct connect), which it seems is noted.

    To see the changed/moved pins maybe best to look at the product page underSignals to Teensy :

    The images there show the signal names and locations and should allow mapping the wires as needed.
    Actually the table under those images seems to have the needed mapping.

  3. #3
    Senior Member PaulStoffregen's Avatar
    Join Date
    Nov 2012
    Maybe the diagram and photo on this message can help?

    If you wired it up and it's not working, don't be shy, show us photos of your wiring. Maybe we'll be able to see something you've missed.

  4. #4
    Junior Member
    Join Date
    Jan 2023
    Thank you so much for that. Worked straight away.
    If I was using this for the audio guestbook, would I need additional wires between the teensy and the audiosheild or are the connections included in the diagram enough?

    Thanks for your help

  5. #5
    Junior Member
    Join Date
    Jan 2023
    Click image for larger version. 

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    I have wired according to the drawing along with the additional connections you suggested, but now i cannot seem to get anything to play through the audiosheild. I tried re-installing arduino as someone suggested on another thread but now i am getting the error Invalid library found in C:\Program Files (x86)\Arduino\hardware\teensy\avr\libraries\librar ies: no headers files (.h) found in C:\Program Files (x86)\Arduino\hardware\teensy\avr\libraries\librar ies
    and still no sound. i am trying to play the example audio/synthesis/guitar. when i view it on the serial monitor i can see it playing but im not getting any sort of output at the jack.

    thank you.

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