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  1. Replies
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    Hi Thanks for the reply. As I was going...

    Hi

    Thanks for the reply. As I was going through the possibilities for the bat-detector playing so playing CLK_CTRL settings was something I had not tried yet. It was the difference in harmonics...
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    Hi, Just by chance I see you have been testing...

    Hi,

    Just by chance I see you have been testing different setups to change the samplerate, have you done any further work on this ? One of odd things your spectrum graphs show is that with a SR of...
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    This is the output I get (I tried with teensy3.1...

    This is the output I get (I tried with teensy3.1 but this gives the same issues as teensyLC)

    compilation terminated.
    Archiving .pio/build/teensy31/lib08f/libWire.a
    Indexing...
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    Hi, I just tried to use your code and got the...

    Hi,

    I just tried to use your code and got the same errors. The direct link between NXPmotionSense and util/crc16 seems to be inside Nxpmotionsense.cpp. Just adding CRC16.h to your project does not...
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    Can you share your full code ?

    Can you share your full code ?
  6. Replies
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    You could simply copy this:...

    You could simply copy this: https://github.com/PaulStoffregen/cores/blob/master/teensy3/util/crc16.h
    into the library-section of your project as a fast solution
  7. Replies
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    If you look at:...

    If you look at: https://github.com/PaulStoffregen/NXPMotionSense/blob/master/examples/CalibrateSensors/CalibrateSensors.ino

    You see that the program starts with:


    #include <NXPMotionSense.h>...
  8. Replies
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    if you look at the examples in the github for...

    if you look at the examples in the github for this library you will find out ...
  9. Replies
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    Just open the embedded terminal in VSCODE...

    Just open the embedded terminal in VSCODE (rightmost icon on the statusbar on the bottom)
  10. Replies
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    Question is if the nxpmotionsense lib has been...

    Question is if the nxpmotionsense lib has been installed from platformIO or not

    PlatformIO has a system to install libraries, you can first check from the terminal if a library exists:...
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    Hi, In the dependency-graph you see its using...

    Hi,

    In the dependency-graph you see its using <NXPMotionSense> 1.0 and states that the function _crc16_update (from which library ?) was not declared. So NXPMotionSense must be depending on...
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    Hi, If you want specific libraries to be used...

    Hi,

    If you want specific libraries to be used you can edit the platform.ini of your project (you need to first create a project), here's an example of one of my platform.ini files where I do use a...
  13. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Hi, If anybody is willing to do such a test...

    Hi,

    If anybody is willing to do such a test and record the data in a raw-audio file I will be volunteering to do the analysis of the datasets in a standardized way. For this I will be studying...
  14. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Hi, I invite anybody who has this kind of...

    Hi,

    I invite anybody who has this kind of equipment to try and test this. For me this was a test and I am allready happy with the progress I made.

    Another option would be to generate (using...
  15. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Hi, Isnt the data you can see in the files...

    Hi,

    Isnt the data you can see in the files (raw files on github) allowing that ?
    17522

    Cor
  16. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Hi Remis, I do not have equipment to do that...

    Hi Remis,

    I do not have equipment to do that kind of testing but maybe others can. The "generator" is as stated a simple MCU generating a PWM signal for a given frequency that is than transmitted...
  17. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Testing SGTL5000 MIC settings (MIC_CTRL and REF_CTRL)

    Hi,

    In the past few days I have been trying to find out if the settings for the microphone on the SGTL5000 codec can be changed to improve the quality of the incoming ultrasound signals.

    For...
  18. That can be done also using PlatformIO but its...

    That can be done also using PlatformIO but its always wise to follow a choice you are allready accustomed to. I merely wanted to signal that PlatformIO is often overlooked whilst it can make things...
  19. Try using PlatformIO from within VisualCode ......

    Try using PlatformIO from within VisualCode ... it will make uploading very simple.
  20. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    v0.98 minor update, bugfixes and some additional options

    Hi,

    I have uploaded the source an hex to Github. No major changes, some cosmetic improvements in the screens (settings).

    Added a option to change the libraries used during compilation, #define...
  21. I am using PlatformIO in MS Visual Studio Code...

    I am using PlatformIO in MS Visual Studio Code for some time to program a Teensy 3.6 and I have seen that support for the teensy 4.0 has been added recently:...
  22. Unstable measurements on VCC (Teensy Batdetector)

    Hi,

    I have recently added a Lipo to a Teensy Batdetector (see https://forum.pjrc.com/threads/38988-Bat-detector). Next step was adding a simple routine that keeps track of the voltage coming from...
  23. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    I think Edwin has removed C2 from his design...

    I think Edwin has removed C2 from his design later on. But the simulation with LT-spice does show this is probably not going to change the amplification
  24. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Hi, The amplitude will be depending on the...

    Hi,

    The amplitude will be depending on the distance from the key-ring to your detector, the loudness of your ring (intensity), the gain for the one-transistor amplifier (which design ?) and the...
  25. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Hi, I have just uploaded a proper working hex...

    Hi,

    I have just uploaded a proper working hex and also updated the sourcecode. In the lib subdirectory I have added the most recent setup of the libraries I am using for those that are compiling...
  26. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Hi, Comparing detectors is not a very simple...

    Hi,

    Comparing detectors is not a very simple thing unless it is done in a controlled environment. Can you tell which pre-amplifier you used ? How is your microphone constructed ?
    Frank (DD4WH)...
  27. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    V096 ... has a problem

    Hi,

    Without me realizing V096 suddenly had a problem when used. So currently I have pulled off both the source and hex from the site until the repair is done ...

    regards
    Cor
  28. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    v096 major update

    Hi,

    I have just uploaded both the source and the compiled hex for V096. As mentioned before this contains a large amount of changes. Edwin (pe1pwf) and Seriesman71 have been testing this also and...
  29. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Hi, Thanks to @Seriesman71 and @pe1pwf for...

    Hi,

    Thanks to @Seriesman71 and @pe1pwf for testing, I will try today to wrap up the work on 0.95 and release the sourcecode and an updated hex. The current hex will be removed as it still contains...
  30. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Hi Seriesman71, Thats allready part of the new...

    Hi Seriesman71,

    Thats allready part of the new setup, you can save the encoder direction-setting now inside a new "settings" menu. As soon as that works as planned I will inform overhere
    ...
  31. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    next software update: requests ??

    Hi,

    Behind the screens I am working on a rather large change/update of the current sourcecode. If anybody has specific wishes/ideas/bugs I would like to hear them to consider adding them to the...
  32. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Well we have Edwin who assembles these modules...

    Well we have Edwin who assembles these modules and he might have a go at trying one without the central pad connected. So never ... say never
  33. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Well the Mic is PCB mounted and thus that central...

    Well the Mic is PCB mounted and thus that central pad is not something I can or will try to fiddle with ... its way to small for programmers ;) I am used to buttons instead of a microscope
  34. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Hi Frank, I am using one of the mics from...

    Hi Frank,

    I am using one of the mics from Edwin so probably the central pad is connected. That 23Khz peak should be associated with something on the board I am quite sure but ... what is still a...
  35. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Yep I see it now, but its a bit small and only...

    Yep I see it now, but its a bit small and only shows the spectrum till 20Khz
    Here's one I made of the same microphone with a 1 transistor pre-amp on the PCB Edwin has created.

    17224
  36. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Hi Frank The attachment seems to be...

    Hi Frank

    The attachment seems to be unavailable.

    regards
    Cor
  37. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    v094 several changes

    Hi,

    I have just uploaded V094 on the github repository.

    0.94 important changes:
    -Lower menu format on screen now follows the alignment of the encoders/buttons on Edwins PCB. So the encoders...
  38. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Building a detector

    Hi,


    In the past few weeks I have been building a detector using the v0.1 PCB designed by Edwin and using the same box (thanks for the support) he is using.
    17179irst
    The image slows from...
  39. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Hi, More about direct recording can be found...

    Hi,

    More about direct recording can be found overhere; https://github.com/WMXZ-EU/microSoundRecorder/wiki
    But there are more projects like that, a lot of good information (mainly in french) can...
  40. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Hi Frieder, Welcome to the teensy forum. Its...

    Hi Frieder,

    Welcome to the teensy forum. Its known that I2S is possible with a Teensy (see https://forum.pjrc.com/threads/49065-ICS43434-I2S-Digital-Microphone-and-Teensy-3-2_ ) but for the...
  41. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    You are getting a nice collection ;) Interesting...

    You are getting a nice collection ;) Interesting work on the shape and position of the cone. I wonder if I can add such structure also to the GX16 connector.

    Cor
  42. Thread: Bat detector

    by CorBee
    Replies
    462
    Views
    34,127

    v093: minor changes

    Hi,

    V093 (available on github) is a minor update, there were problems with setting the sample_rate in the previous version(s) now setting the sample_rate from both the left or rightside encoder...
  43. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Hi Edwin Thats a special setup ;) The lines...

    Hi Edwin

    Thats a special setup ;) The lines are indeed very clean, just a hint of the normal noisy lines.

    Cor
  44. Replies
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    445,438

    Congrats on the release !

    Congrats on the release !
  45. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Well I think the way the menu is currently...

    Well I think the way the menu is currently constructed is not yet the most logical setup. So we can do something about this when overhauling the menu structure once more.
    One of the things that...
  46. Thread: Bat detector

    by CorBee
    Replies
    462
    Views
    34,127

    V0.92 further improvement in the PLAY/RECORD setup

    Hi,

    I just uploaded some work I have done on the PLAY and RECORD section. On my detector this seems to work again as planned and it also has several improvements compared to previous versions.
    ...
  47. Thread: Bat detector

    by CorBee
    Replies
    462
    Views
    34,127

    The temperatures of previous weeks were off...

    The temperatures of previous weeks were off course beyond specs nearly.

    I need some time to get the recording/playing system working as before. For instance in the original mode the system would...
  48. Thread: Bat detector

    by CorBee
    Replies
    462
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    34,127

    Ride of 80k went fine, enough wind like always ;)...

    Ride of 80k went fine, enough wind like always ;)

    The delay is associated with the switch between the playing or recording mode. It now switches every time you start a recording whilst that can be...
  49. Thread: Bat detector

    by CorBee
    Replies
    462
    Views
    34,127

    Hi, I think I know where that originates, I...

    Hi,

    I think I know where that originates, I will change that later today ... first I am going to do a bikeride.

    Thanks for testing
    Cor
  50. Thread: Bat detector

    by CorBee
    Replies
    462
    Views
    34,127

    I will probable stick to the transistor based...

    I will probable stick to the transistor based amplifier on your earlier PCB or use your new PCB and create a small subboard with the preamp directly behind the microphone.

    Cor
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