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  • CorBee's Avatar
    09-15-2019, 12:31 PM
    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 between 44.1Khz and...
    14 replies | 791 view(s)
  • CorBee's Avatar
    09-15-2019, 07:32 AM
    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 44.1Khz (default for...
    14 replies | 791 view(s)
  • CorBee's Avatar
    09-08-2019, 08:27 AM
    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 .pio/build/teensy31/lib08f/libWire.a...
    21 replies | 205 view(s)
  • CorBee's Avatar
    09-08-2019, 07:49 AM
    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 seem to solve this...
    21 replies | 205 view(s)
  • CorBee's Avatar
    09-08-2019, 06:46 AM
    Can you share your full code ?
    21 replies | 205 view(s)
  • CorBee's Avatar
    09-08-2019, 06:02 AM
    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
    21 replies | 205 view(s)
  • CorBee's Avatar
    09-08-2019, 05:39 AM
    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> #include <Wire.h>...
    21 replies | 205 view(s)
  • CorBee's Avatar
    09-07-2019, 04:20 PM
    if you look at the examples in the github for this library you will find out ...
    21 replies | 205 view(s)
  • CorBee's Avatar
    09-07-2019, 03:22 PM
    Just open the embedded terminal in VSCODE (rightmost icon on the statusbar on the bottom)
    21 replies | 205 view(s)
  • CorBee's Avatar
    09-07-2019, 01:13 PM
    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: $platformio lib search...
    21 replies | 205 view(s)
  • CorBee's Avatar
    09-07-2019, 11:41 AM
    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 another library. Why did...
    21 replies | 205 view(s)
  • CorBee's Avatar
    09-07-2019, 11:18 AM
    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 specific directory...
    18 replies | 1429 view(s)
  • CorBee's Avatar
    09-06-2019, 09:27 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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 some python code to...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    09-06-2019, 07:10 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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 the SGTL5000) a sine,...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    09-06-2019, 05:46 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, Isnt the data you can see in the files (raw files on github) allowing that ? Cor
    462 replies | 34083 view(s)
  • CorBee's Avatar
    09-05-2019, 06:43 PM
    CorBee replied to a thread Bat detector in Audio Projects
    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 using a UST. The...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    09-05-2019, 09:01 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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 this I have used a...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    09-03-2019, 04:07 PM
    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 (especially when you...
    26 replies | 226 view(s)
  • CorBee's Avatar
    09-03-2019, 01:49 PM
    Try using PlatformIO from within VisualCode ... it will make uploading very simple.
    26 replies | 226 view(s)
  • CorBee's Avatar
    09-01-2019, 10:25 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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 COMPILER xxxx. As I...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-31-2019, 02:38 PM
    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:...
    11 replies | 455 view(s)
  • CorBee's Avatar
    08-25-2019, 06:09 AM
    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 the Lipo to the...
    0 replies | 36 view(s)
  • CorBee's Avatar
    08-24-2019, 08:48 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-24-2019, 08:13 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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 mic_gain setting of...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-24-2019, 06:28 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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 the sourcecode...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-24-2019, 06:06 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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) has posted some tests...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-23-2019, 03:28 PM
    CorBee replied to a thread Bat detector in Audio Projects
    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
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-23-2019, 06:38 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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 I hope this works...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-23-2019, 05:29 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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 some issues. ...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-21-2019, 05:28 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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 regards Cor
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-20-2019, 12:45 PM
    CorBee replied to a thread Bat detector in Audio Projects
    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 sourcecode. For me...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-14-2019, 07:11 PM
    CorBee replied to a thread Bat detector in Audio Projects
    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
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-14-2019, 07:08 PM
    CorBee replied to a thread Bat detector in Audio Projects
    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
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-14-2019, 06:55 PM
    CorBee replied to a thread Bat detector in Audio Projects
    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 question. For the...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-14-2019, 05:59 PM
    CorBee replied to a thread Bat detector in Audio Projects
    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.
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-14-2019, 05:13 PM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi Frank The attachment seems to be unavailable. regards Cor
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-13-2019, 02:16 PM
    CorBee replied to a thread Bat detector in Audio Projects
    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 control the lower line...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-12-2019, 01:55 PM
    CorBee replied to a thread Bat detector in Audio Projects
    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. irst The image slows from right to left the different...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-09-2019, 09:12 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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 be found overhere...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-09-2019, 08:02 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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 batdetector you need a...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-09-2019, 06:07 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-08-2019, 06:36 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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 should be working...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-08-2019, 05:23 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi Edwin Thats a special setup ;) The lines are indeed very clean, just a hint of the normal noisy lines. Cor
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-07-2019, 05:01 PM
    Congrats on the release !
    4286 replies | 445000 view(s)
  • CorBee's Avatar
    08-06-2019, 05:41 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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 isnt logical is that...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-05-2019, 09:23 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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. This is the info I...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-04-2019, 03:51 PM
    CorBee replied to a thread Bat detector in Audio Projects
    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 read the allready...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-04-2019, 02:54 PM
    CorBee replied to a thread Bat detector in Audio Projects
    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 done also once at...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-04-2019, 08:28 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-04-2019, 07:50 AM
    CorBee replied to a thread Bat detector in Audio Projects
    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
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-04-2019, 07:17 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, I have uploaded v0.91 with the new code that should (hopefully) solve the issues with replay of file (max_files on SD currently 50 but that will change), the hex is also available. Please test this and report...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-04-2019, 06:53 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, I am making some progress on this, I have been able to isolate the issue as a conflict between the playing/recording parts of the code. There is no simple solution yet but it also does not look like something that...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-03-2019, 08:02 PM
    CorBee replied to a thread Bat detector in Audio Projects
    Nice work Edwin and thanks for sharing not only the option to get boards from you but also your design/setup. I am hoping to start building mine using your PCB and guidance after the weekend. regards Cor
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-01-2019, 11:49 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Just checked and the version that is available on the 7th of june (v084) does still have a working system to replay files. So it looks as if the changes we have made afterwards when trying to solve the issues with the...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-01-2019, 09:05 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, I was allready notified by Edwin that the latest versions have problems with playing recorded files. When I checked yesterda my detector also seems to be affected by this, I am using v0.89. When I go the to...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    08-01-2019, 09:01 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, I have uploaded a word version (made with LibreOffice) of the manual with a new structure/image and more information at https://github.com/CorBer/teensy_batdetector/tree/master/documentation Its by no means a...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    07-31-2019, 08:58 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Thanks for sharing !
    462 replies | 34083 view(s)
  • CorBee's Avatar
    07-31-2019, 06:26 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, I think it would be interesting to see how people have currently been building/housing for the detectors. Edwin (PE1WF) has been so kind to share his way to build a detector and it might be nice to see some more...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    07-31-2019, 06:21 AM
    CorBee replied to a thread Bat detector in Audio Projects
    OK, I will try documenting the basic functionality this week. I will create a DOC with some screenshots and will use your initial DOC as the startingpoint. After we all agree that the basic functionality is OK it can be...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    07-31-2019, 04:31 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi Remi, When do you want to have the manual ready ? I am willing to help you on this and a manual is in many project the thing that gets little attention so this is a good moment/reason to make an initial manual. ...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    07-28-2019, 08:38 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi https://github.com/CorBer/teensy_batdetector contains both the hex and the source voor v0.89. No major changes 0.89 -eeprom version 0001 -indicator for low-high detectionrange in graph for AUTO_TE -menu...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    07-27-2019, 05:05 PM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, Good to hear you could save ! I suggest not changing param currently, its an experimental setting I am working on and this allows me to try different settings. Param currently is used to set the minimum time...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    07-27-2019, 03:13 PM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, When you turn RL until PRESS_DEFAULT you are setting the system to always start using the DEFAULTS (programmed), you need to turn RL to PRESS_USER and then Press RL to go from white back to yellow. So turn the...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    07-26-2019, 09:18 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Thanks and done as suggested
    462 replies | 34083 view(s)
  • CorBee's Avatar
    07-26-2019, 07:37 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi seriesman, Thanks for the info, its always good to know that people are using it. If you have specific requests/ideas/problems ... dont forget to share/bug us with those too ;) Cor
    462 replies | 34083 view(s)
  • CorBee's Avatar
    07-26-2019, 05:31 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, Thats odd. The startup EEprom shows 0000h at startup indeed as that is the version of the EEprom parametersset that is getting saved. That will change only because of adding a new parameter to the set of...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    07-25-2019, 08:18 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi Remi, Good to hear. Did you try the EEprom saving feature allready ? regards Cor
    462 replies | 34083 view(s)
  • CorBee's Avatar
    07-24-2019, 11:24 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi Paul, Can we remove his message if this is the case ? Cor
    462 replies | 34083 view(s)
  • CorBee's Avatar
    07-24-2019, 11:14 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, You want to know the number of people that have built and used this detector based on the Teensy ? If you read the forum you can see those that have actively participated thusfar, thats less than 10 people I...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    07-24-2019, 07:10 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, I have uploaded both the source and the pre_compiled HEX for v0.88. As stated earlier this contains the new EEprom setup, this allows you to save the current settings as a default for the next startup. For this...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    07-21-2019, 08:10 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, I have tried to compare the sensitivity of the SPU0410 vs the ICS40730 using one of Edwins PCBs for the ICS40730. I used a UST transducer (midfrequency 40Khz) to transmit a signal at 35, 45, 55 and 65 Khz, the...
    462 replies | 34083 view(s)
  • CorBee's Avatar
    07-20-2019, 05:42 AM
    CorBee replied to a thread Bat detector in Audio Projects
    Hi, I have made several HT receivers myself using such an ultrasonic microphone(UST/USR 40Khz), but their sensitivity is really not comparable to the ICS or SPU microphones. So it might be that the ICS picks up a...
    462 replies | 34083 view(s)
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