Several Problems AND SOLUTIONS I Found During My Build #36
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mpetti1816
changed the title
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Nice, thanks for your update! Where do you put the greeting audio file? |
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Ok. So I have board soldered. Code compiled and uploaded to the Board. I add power to the Board and I hear a beep. After that, I get nothing. Not sure what the issue is. Is there a way to see a log of the steps of code the Board is going through? Maybe then I can determine where my issue is. |
That initial beep is an indication that it has power and is running (at least that's what it seems like, mine does the same beep upon power). If you look under the Tools menu, there is something called the Serial Monitor. When you open that and run your board, there are sections of the code that will print out what is going on while it's running. I used that to troubleshoot a few wiring problems I had. |
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I just did Serial Monitor. It keep saying "unable to access SD card". SD card is definitely present though. It is in the same way after programming the board. |
I am no where near an expert on this stuff, but a couple things that come to mind. Ensuring your MTP_Teensy libraries were put in the right folders and that "Serial + MTP Disk (Experimental)" was selected (both in my initial post). The other thing to check is that your SD card is not larger than 2TB. That limitation is mentioned at the bottom of this page https://www.pjrc.com/store/teensy3_audio.html Other than that, I can't think of anything else, so good luck Googling or having someone else chime in. |
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I saw another Issue down below that said it was the pin locations with Rev D of the Audio Shield. I changed those to match the Rev D diagram, but still getting the same message. |
I formatted my SC card (32gb Samsung) to exfat, not saying that would solve your issue, but worth trying. |
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When I compile to the teensy I’m getting an error about Serial port not selected. |
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Did you select the port under Tools?
On Tue, Jan 24, 2023 at 6:08 PM fivefortyfour ***@***.***> wrote:
When I compile to the teensy I’m getting an error about Serial port not
selected.
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I am using Teensy 4.0 so SD only in Audio Shield.
I ended up using a different fork version of the code and it worked fine
with my sd card as is. Weird.
On Tue, Jan 24, 2023 at 4:27 PM C.PereiraUY ***@***.***> wrote:
I just did Serial Monitor. It keep saying "unable to access SD card". SD
card is definitely present though. It is in the same way after programming
the board.
I am no where near an expert on this stuff, but a couple things that come
to mind. Ensuring your MTP_Teensy libraries were put in the right folders
and that "Serial + MTP Disk (Experimental)" was selected (both in my
initial post). The other thing to check is that your SD card is not larger
than 2TB. That limitation is mentioned at the bottom of this page
https://www.pjrc.com/store/teensy3_audio.html
Other than that, I can't think of anything else, so good luck Googling or
having someone else chime in.
I formatted my SC card (32gb Samsung) to exfat, not saying that would
solve your issue, but worth trying.
Another thing, where are you inserting your SD card? Teensy or Audio
Shield? Try swithching them
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Finally, all working! |
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I had to amend my SD card pins in the code as I am using Audio Shield Rev D - this ended up working (as well as making sure my pins were connected accordingly) #define SDCARD_CS_PIN 10 |
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Thanks, Rich. So, I have done this with a few different variations of the code, and also by changing the pin numbers in the code for those different variations, because I too saw that the PIN locations for the T4.0/Audio Shield were different than what people were using. https://www.pjrc.com/store/teensy3_audio.html I ended up getting the DD4WH fork code to work WITHOUT changing the pin locations, which confuses me somewhat as to why that worked if the pin locations are off. Question back to you though... so I know how to easily change the pin locations in the code, but I wasn't thinking about physically changing the pin connections on the board. I was under the impression that when the T4.0 and Audio Shield were stacked together, then that is where the pins lined up appropriately based on the link above. Can you touch on this part a little more? Maybe even a pic of your board? |
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Sorry, to clarify, I just meant confirming that my pins (10,11,13 in this case) were soldered well and that the board was stacked correctly (e.g. not misaligned or upside down etc). I am by means no expert on this, I've just recently completed this project and ran in to similar problems so just sharing my learnings. Glad to hear you got it working however! |
@BrandonJam Can I ask which fork you ended up using? I am facing the same problem. |
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the fork version from @DD4WH |
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I'm recording my wav files to sd card but when I plug teensy into laptop with usb cable, I can't play the files as it says they're in use? I can't copy them either. How do you use them? I want to access them with usb cable and not take out the sd card. |
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I'm a little confused. I downloaded the MTP_Teensy documents that you said to and put them in the libraries folder, but I'm still getting "'MTP' was not defined in this scope." The extent of my knowledge with code is drawing a circle on Khan Academy, so I'd appreciate any help I can get imagine there is a laughing emoji here |
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I have a phone that has been working fine. Now it seems to have stopped
working. I don't get the 4 beeps when I hang up the phone?
Anyone have this problem?
…On Wed, 25 Jan 2023 at 17:47, BrandonJam ***@***.***> wrote:
Thanks, Rich. So, I have done this with a few different variations of the
code, and also by changing the pin numbers in the code for those different
variations, because I too saw that the PIN locations for the T4.0/Audio
Shield were different than what people were using.
https://www.pjrc.com/store/teensy3_audio.html
I ended up getting the DD4WH fork code to work WITHOUT changing the pin
locations, which confuses me somewhat as to why that worked if the pin
locations are off.
Question back to you though... so I know how to easily change the pin
locations in the code, but I wasn't thinking about physically changing the
pin connections on the board. I was under the impression that when the T4.0
and Audio Shield were stacked together, then that is where the pins lined
up appropriately based on the link above. Can you touch on this part a
little more? Maybe even a pic of your board?
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Does anyone know if the author (@alastaira) is still accepting Pull Requests? It'd be nice to add something like this to a "Troubleshooting" section of the readme... |
It took me a lot of hunting around to fix some of the code issues I was encountering and I'd thought I'd explain my solutions to those of you who are struggling with the same problems. The answers were pulled from this project's main page, the "Closed Issues" board, and a few other places on the internet, but here they are consolidated.
My experiences only pertain to the Github code for this project as of January 22, 2023 and the specific hardware/software that I used.
My hardware:
Teensy 4.0 board
Teensy4_AUDIO Audio Shield
Momentary pushbutton
Vintage telephone
My software:
Arduino IDE 1.8.19
Teensyduino 1.57 using Windows installer
First steps: I did all of the installation adjustments included on the audio-guestbook Github main page, such as
I then had several compiling errors that I had to hunt around for solutions to
Problem:
AudioPlaySdWavX does not name a type
&
'playWav1' was not declared in this scope
Solution:
Inside your sketch, go to the "Sketch" dropdown at the top, choose "Add File" and add play_wav_sd.cpp and repeat with play_wav_sd.h files that were in the Github code download.
Leave those tabs open, then try Verifying your sketch and you should lose those errors.
Problem:
Multiple libraries were found for "SD.h"
Solution:
I cut/pasted the folder 'C:\Program Files (x86)\Arduino\libraries\SD' out of the Arduino libraries directory and saved it elsewhere on my computer for safe keeping. Now, the only 'SD' folder should be under Arduino\hardware\teensy\avr\libraries\
Problem:
Compiling error involving SerialFlash.h
Solution:
Re-ran the TeensyDuino installer and added the 'SerialFlash' library
Problem:
Multiple errors involving MTP_Teensy.h
Solution:
Download the Github code from https://github.com/KurtE/MTP_Teensy and unzip the folder into 'C:\Program Files (x86)\Arduino\libraries'
Then, in your Arduino sketch, select from the dropdowns at the top "Tools > USB Type > Serial + MTP Disk (Experimental)"
Problem:
Audio was clipping (breaking up) during playback after I got everything "working"
Solution:
There are two volume adjustments in the code that I fiddled with. Use CTRL+F in the code to find "sgt15000_1.volume(0.95)". The 0.95 is 95% volume on the headset speaker, which was too loud. I dropped it down to 0.7 and it stopped clipping on playback.
I also adjusted the "sgt15000_1.micGain(5)", which is how loud the microphone on the headset is recorded in the file. I dropped it to (4) because the recordings sounded blown out.
Problem:
My greeting message wasn't playing back, I would just get a single "beep" when I lifted the handset
Solution:
I downloaded Audacity and opened my greeting message, then exported it using 44.1kHz and 16-bit PCM as a new WAV file. I also had a stereo recording, so I had to delete one of the tracks to make it "mono". That fixed the playback problem.
Problem:
The code compiled correctly (finally), but the handset wasn't responding properly and I was hearing a constant clicking noise in the speaker.
Solution:
My phone had a lot of shared terminals in the internal wiring. I disconnected all of the wires from the phone's terminals and directly wired each wire from the speaker/microphone/handset contact/pushbutton to the inputs/outputs of my Teensy board. This solved the clicking issue and after troubleshooting my code, it also solved the audio issues.
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