Forum Rule: Always post complete source code & details to reproduce any issue!

Search:

Type: Posts; User: houtson

Page 1 of 5 1 2 3 4

Search: Search took 0.00 seconds; generated 33 minute(s) ago.

  1. WatchDog + CrashReport + Breadcrumbs + working off USB

    I've got CrashReport working well saving to eeprom using method at #3, Also been using the breadcrumbs in 1.57 which are a really useful addition.

    I'm now trying to chase down an intermittent...
  2. Replies
    8
    Views
    299

    Hi @Pkore, In your sketch you need to give it...

    Hi @Pkore,

    In your sketch you need to give it some audio memory in setup (try AudioMemory(10); ).

    In general for hardware testing you'd be better using one of the examples...
  3. Replies
    26
    Views
    2,044

    Hi Rezo I've had it working with PlatformIO....

    Hi Rezo

    I've had it working with PlatformIO. PlatformIO does have the necessary compiler option set for a standard build (the -g option mentioned above). You need to add that in if you haven't...
  4. Replies
    12
    Views
    422

    Hi - in that link it is the second circuit - with...

    Hi - in that link it is the second circuit - with a different opt-isolator

    https://diyelectromusic.files.wordpress.com/2021/02/diy-midi-receive-3.3v-v2_schem-1.png?w=1023&h=&zoom=2
  5. Replies
    12
    Views
    422

    Hi @Tombot7 - the Teensy 4 pins are not 5v...

    Hi @Tombot7 - the Teensy 4 pins are not 5v tolerant, it looks like you are driving them to 5v which will likely cause damage. They are designed for 3.3v.

    Either use a Teensy 3.x which can take 5v...
  6. Replies
    3
    Views
    309

    https://www.adafruit.com/product/4226 - might be...

    https://www.adafruit.com/product/4226 - might be of interest ?
  7. The circuit will likely fix your feedback problem...

    The circuit will likely fix your feedback problem (without needing the filter).

    What is the source that you are trying to connect ?
  8. Replies
    10
    Views
    1,125

    wow, that looks crazy - I want one!

    wow, that looks crazy - I want one!
  9. @teensytwo - what sort of circuit are you using...

    @teensytwo - what sort of circuit are you using for the input?
  10. Replies
    15
    Views
    491

    I knew I had read about his somewhere, some...

    I knew I had read about his somewhere, some useful real world testing detail (especially if you want to implement continue) in this link

    If you get stuck there are still commercial products out...
  11. Replies
    15
    Views
    491

    Hi, cool that you have a CR 5000. I'm not...

    Hi, cool that you have a CR 5000.

    I'm not speaking from in-depth experience of doing this with teensy but a couple of points:
    - Din sync just counts pulses (rather than frequency) - your myClock...
  12. @luni, I used your code at #3 - it works great. I...

    @luni, I used your code at #3 - it works great. I added a marker like you suggested for 'report available' and also one for 'report read' so you can see new crash reports. Thanks Paul.
  13. @luni - thanks, our posts crossed - your solution...

    @luni - thanks, our posts crossed - your solution looks much better (esp. the terminator). Cheers, Paul
  14. Thanks @Defragster, that helps. As a quick...

    Thanks @Defragster, that helps.

    As a quick hack I've used StreamUtils to write it to EEPROM on restart and then read it out at leisure.

    I don't think there is an end of report marker and the...
  15. Using CrashReport when not connected to USB

    I'm trying to track an intermittent fault on a teensy (micromod) project that runs off USB for most of the time.

    The fault only happens very occasionally, when it does it locks-up then auto...
  16. my bad, 33R is the what i meant. cheers Paul

    my bad, 33R is the what i meant. cheers Paul
  17. Yes, it is compatible with the AudioOutputI2S...

    Yes, it is compatible with the AudioOutputI2S object



    They look fine


    I've alway connected them, can't imagine not connecting will be a problem but I've not tried that, perhaps someone with...
  18. this link is about volume control ...

    this link is about volume control but some approximations that might be of use to you.
    cheers, Paul
  19. Hi, I'm not sure I fully understand what you...

    Hi,

    I'm not sure I fully understand what you are trying to do but a couple of points that might help.

    if you are mixing 4 signals together you would normally have the gains set <1.0
    - if...
  20. Replies
    1,019
    Views
    97,395

    I used the symbol and footprint @luni created...

    I used the symbol and footprint @luni created (above)

    good opportunity to say many thanks to @luni and confirm they worked out perfect.

    Cheers, Paul
  21. Hi, That's great you're up and running. Couple...

    Hi,

    That's great you're up and running. Couple of points:
    - are you using the Audio library?
    - you mix up I2C and I2S in the comment - is that deliberate (I2S and encoders)?
    - on stability,...
  22. Hi, They share the same clock so connect BCLK...

    Hi,

    They share the same clock so connect BCLK & LRCLK on both WM8731s to 21 ad 20 on the Teensy.

    Your I2S_2_TX & RX don't look right, the correct pins at the teensy end are in the comments...
  23. The test board was really just getting two...

    The test board was really just getting two WM8731s working together. I've been using that codec in a project to recreate an old vintage effect unit (some details on Instagram if interested).

    For...
  24. 4 SID chips sounds ace - would love to hear that...

    4 SID chips sounds ace - would love to hear that if you’ve got anything on YouTube or Instagram?
  25. Hi MrC I use two WM8731s for an audio...

    Hi MrC

    I use two WM8731s for an audio project, you'd have an extra 2 outs ( 4in and 4 out) but the chips are reasonably available and come in SSOP so easy to solder by hand. They are also...
  26. Ok, see why you want the buffer. The circuit...

    Ok, see why you want the buffer.
    The circuit you have is biasing the op amp at 4.5v which will be no use for the audio board - I’d remove r3 to remove that bias and it should be fine.

    The other...
  27. @markT. The codec has 29k input impedance on the...

    @markT. The codec has 29k input impedance on the line in, would that not do ?
  28. hi - I might have missed the point here but you...

    hi - I might have missed the point here but you should just be able to plug the synth jack straight into the audio board line in i.e. bypass the circuit you have above and just connect the jack input...
  29. @rvh - don't know if it's any help but I ported a...

    @rvh - don't know if it's any help but I ported a mutable instrument sample rate reducer effect, does a nice smooth effect all the way down. It's just an effect so doesn't actually change the sample...
  30. Replies
    18
    Views
    1,264

    Hi - in this picture you are one row out - don't...

    Hi - in this picture you are one row out - don't solder them up like this.

    you need to align the first row of pins on the teensy with the first row of pins on the shield
    cheers paul
  31. Thread: 24 Keys Matrix

    by houtson
    Replies
    14
    Views
    1,281

    also, the keypad library...

    also, the keypad library is very effective if you are looking for a ready baked solution
  32. Replies
    21
    Views
    1,996

    I do something similar in this post...

    I do something similar in this post, not with a T4.0 but a T4 micro mod and 2xWM8731

    cheers Paul
  33. Replies
    37
    Views
    4,288

    On my board I use BATT_VIN/3 as a general IO and...

    On my board I use BATT_VIN/3 as a general IO and all seems to work fine (including the other analogue inputs). I'm fairly sure as KurtE says it's just intended for battery level monitoring as part of...
  34. Replies
    37
    Views
    4,288

    If usb c also make sure you connect cc1 and cc2...

    If usb c also make sure you connect cc1 and cc2 at the usb socket (to GND through 5.1k res). cheers Paul
  35. Replies
    37
    Views
    4,288

    No. You need to give the MM 3v3 from your...

    No.
    You need to give the MM 3v3 from your carrier board but for the USB to work you also need to connect USB_VIN.
    Sorry if it wasn't clear.
    Cheers, Paul
  36. Replies
    37
    Views
    4,288

    Success! It was that I hadn't connected USB...

    Success!

    It was that I hadn't connected USB VIN to pin 9 on the mm connector - I was using it to convert to 3v3 but I didn't connect it direct to the MM thinking it's 5v and teensy 4 doesn't like...
  37. Replies
    37
    Views
    4,288

    Thanks I'll have a check on voltage and current...

    Thanks I'll have a check on voltage and current levels, good idea.

    I'm just using a small 3v3 ldo and was thinking I'd get something larger for next rev. Teensy is running quite happily and doing...
  38. Replies
    37
    Views
    4,288

    Thanks for having a look at it - it's a usb c...

    Thanks for having a look at it - it's a usb c connector.

    zoomed in on usb and mm

    26267

    whole board

    26268
  39. Replies
    37
    Views
    4,288

    MicroMod Teensy Custom Carrier - USB Comms

    Hi, I've got stuck on this and think i might be missing something really basic on how to communicate with USB on Micro-Mod.

    I built a custom carrier for an audio effect project, powers up fine...
  40. Thread: Gate

    by houtson
    Replies
    17
    Views
    7,090

    I made a quick modification to run on Teensy 4.x...

    I made a quick modification to run on Teensy 4.x

    I'm using it as part of a gated reverb so wanted something slightly different from it so it now has two inputs:
    - input 0 is the main audio input...
  41. Replies
    4
    Views
    728

    Hi Something else to look at is that the...

    Hi

    Something else to look at is that the loop() function will be executing at a very high rate (millions of times a second).

    You'll be continuously re-starting the effect (.begin) and...
  42. Replies
    1,019
    Views
    97,395

    Another thank-you from me really helpful sorting...

    Another thank-you from me really helpful sorting out a question I had

    Cheers Paul
  43. Answering my own question here but might be...

    Answering my own question here but might be interesting to someone coming behind....

    To confirm, the MicroMod has all the pins exposed to run 4 channels in and out no problem using the standard...
  44. @grinch - there is also a schematic of the Teensy...

    @grinch - there is also a schematic of the Teensy 4 board here put there by another user along with kicad files, it may be useful.
    cheers, Paul
  45. Hi @dimitre In the example it is a circular...

    Hi @dimitre

    In the example it is a circular buffer designed to process a continuous stream of audio so when it gets to the end it just wraps around to the start again.

    In this example -...
  46. Hi Oscar, you could check out TyCommander...

    Hi Oscar,

    you could check out TyCommander I haven't used it with multiple Teensys and PlatformIO but other seem to have had success with it

    Cheers, Paul
  47. Replies
    3
    Views
    737

    hi @torché, I had a similar issue and concern,...

    hi @torché,

    I had a similar issue and concern, I ended up using a different codec (a wm8731) as although still SMD it's an easier package to hand solder.

    Some details in this thread...
  48. Hi, I've not used PSRAM but from what I...

    Hi,

    I've not used PSRAM but from what I understand that approach with EXTMEM should work.

    As long as you are not looking to 'save' you loops that approach with an array sounds good.

    It...
  49. Replies
    4
    Views
    761

    Thanks all, got that Paul. Posted question in...

    Thanks all, got that Paul.

    Posted question in usual way here.

    Cheers, Paul
  50. MicroMod Teensy - 4 Channel Audio / Custom Carrier

    Hi

    I want to use the MicroMod Teensy on an audio project. I've got it in the ATP carrier at the moment but planning a custom carrier with codecs for 4 output channel sound (only need 1 input).
    ...
Results 1 to 50 of 233
Page 1 of 5 1 2 3 4