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  1. Possibly solved, fingers crossed

    I am running the Arduino IDE as a portable installation from a pen drive. There is an SD library in F:\Arduino portable IDE\hardware\teensy\avr\libraries. There is another SD library in F:\Arduino...
  2. OK, that might be an issue. I'll investigate. ...

    OK, that might be an issue. I'll investigate. Thanks.
  3. Many thanks. I'll do both those things, but it...

    Many thanks. I'll do both those things, but it will have to be tomorrow (London time) as I've left the Teensy in my bag at work (lunchtime hobbyist!). I do have photos of the Teensy and audio...
  4. Thanks so much for trying this. It's great but...

    Thanks so much for trying this. It's great but puzzling that the same code works for you.

    I'm using a Teensy 3.2, Arduino IDE 1.8.9. Not sure which version of Teensyduino - how do I tell? I...
  5. Thanks all for those suggestions. I had...

    Thanks all for those suggestions.

    I had thought that an empty
    while(1){} loop would hold up the code indefinitely - and come to think of it, I've used it like that when de-bugging. But anyway,...
  6. Thanks, both, for looking at this. What kind...

    Thanks, both, for looking at this.

    What kind of command would you insert?

    The options I can see are a counter or a timer. I need to play the whole file, and file length is variable...
  7. Forgive me for bumping this, but having tried all...

    Forgive me for bumping this, but having tried all kinds of workarounds, I am really stuck.
    :(
  8. Staying awake while playing a WAV file

    I'm struggling with the interaction of the Audio and Snooze libraries. Most applications seem to want the processor to perform other tasks while Audio is playing a WAV file. But those other tasks...
  9. Following good advice elsewhere, I have found...

    Following good advice elsewhere, I have found optimal battery life from 4 x AA LiFe batteries (about 6.7 V when new) coupled to a Polulu D24V5F5 step-down 5V voltage regulator. Once the combined...
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    Puzzler with Snooze and wav player

    I'm using a Teensy 3.2 with audio board to play long WAV files (>1 min). The playing part works fine. Between plays, I want the processor to sleep for a pre-determined interval which in the final...
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    OK, after dipping into the hideous NXP manual, I...

    OK, after dipping into the hideous NXP manual, I think I may be able to answer my own questions. It seems to be a difference in terminology between the Atmega386 and the ARM Cortex-M4. In the '386,...
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    Many thanks for your reply. My only...

    Many thanks for your reply.



    My only accessories are the voltage regulator and the amp. I've used the same voltage regulator in other applications, and its current drain when quiescent is very...
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    Best way to sleep for long periods

    I'm a wildlife biologist working in a conservation context where we need to determine which predators home-in on the sounds made by hatching bird chicks. I want my Teensy 3.2 working on a battery...
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    Ahhhh, thanks so much. I misunderstood: I...

    Ahhhh, thanks so much. I misunderstood: I thought the line-out was digital. Working fine now.

    This project has a serious conservation potential for engdangered wading birds, so I was keen to...
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    Update: I've moved the GND and A- connections on...

    Update:
    I've moved the GND and A- connections on the AMP to AGND on the Teensy. This made a kind of sense. It has cut out the background hiss, and the speaker still clicks at power up, but still...
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    Connecting to amp through DAC

    Please can someone help with this? I have searched this forum and the web, but find very little about using the Teensy audio capability with speakers.

    I've got my Teensy 3.2 + audio board happily...
  17. Right, we're in business!! Tried a fresh,...

    Right, we're in business!! Tried a fresh, re-formatted micro SD card (default FAT), and everything is working great. Astonishing sound quality, which is exactly what I wanted. Many thanks for your...
  18. OK, I'll try that with a fresh SD card. One...

    OK, I'll try that with a fresh SD card. One thing I was uncertain about: should I choose FAT (Windows default) or FAT32?
  19. Thanks, photos attached1652816529. I've used...

    Thanks, photos attached1652816529.

    I've used the headers that were recommended for the purpose by the UK importer. They still have about 4mm projecting below the Teensy board too, pending...
  20. Unable to get started with simple WAV player

    I'm new to Teensy (after Arduinos), so have rather a lot of learning to do.

    After playing at flashing the on-board LED and testing the hardware setup, I have uploaded the WavFilePlayer sketch from...
  21. Yup, OK, I've done that now. Here we go, then.

    Yup, OK, I've done that now. Here we go, then.
  22. Paul, thanks for your response - I appreciate...

    Paul, thanks for your response - I appreciate your personal intervention. Unfortunately, the very first thing that happens when I run the TeensyduinoInstall.exe file is that I get a dialogue pop-up...
  23. Please help me get started with Teensy

    Apologies for cross posting (here), but I need to get started with the Teensy I've just bought, otherwise I shall have to chuck it away before I've even tried it. I don't have time to wait.
    ...
  24. Teensyduino in pen drive portable Arduino IDE

    Hi,

    I'm new to Teensy, having been tempted over for the audio side of things.

    Because I don't have admin privileges over my office PC (with Windows 10), I am running a portable installation of...
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