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  1. And does the data get transmitted ? Do you see it...

    And does the data get transmitted ? Do you see it on the RX side ?
  2. No Data sent in serial ? Also if you have no...

    No Data sent in serial ?
    Also if you have no delay in the loop this will run continously ... I would add either a long delay or let the transmissions happend at certain second (based on...
  3. OK. Than proceed as suggested, first make sure...

    OK. Than proceed as suggested, first make sure the data leaving the TX is what you want. Serial will tell you that, and make sure it sends out data at a regular interval (not to short). If that works...
  4. Oh I now only get the point of your message ......

    Oh I now only get the point of your message ... you are not even sending/receiving real data yet ... You cant test anything without the proper hardware !
  5. Should be easy to find out. Just make your TX...

    Should be easy to find out. Just make your TX send every 10 seconds or so and check if you get incoming data every 10 seconds also. If you get a regular signal coming in that is most likely due to TX...
  6. The & and size are logical, you send the data of...

    The & and size are logical, you send the data of a variable and the receiver needs to know how many bytes should be send (depending on the type of variable)


    from...
  7. WOuld be got to be sure about what the TX has...

    WOuld be got to be sure about what the TX has send also, if TX sends something wrong RX cant correct that.

    What happens if you dont try to send the data as a float but as a string (I saw you had...
  8. And what does the serial on the TX and RX show ?

    And what does the serial on the TX and RX show ?
  9. No problem, this if often the only way to inspect...

    No problem, this if often the only way to inspect code and see where things might go wrong.

    Cor
  10. Share your code

    Share your code
  11. Hi, NaN stands for " Not a number " and could...

    Hi,

    NaN stands for " Not a number " and could be that there is something in the format of the data you are receiving ("." or "," as decimal separator for instance). Try printing the data not as a...
  12. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi, Edwin reported this morning that the code...

    Hi,

    Edwin reported this morning that the code to prevent the counter resetting to 0 during autorecord has worked. Some more testing will be done and after that I will probably update the code and...
  13. Hi, I have >10 running at the moment. I...

    Hi,

    I have >10 running at the moment. I combined the MSP430 and the NRF24L01 on a small perfboard and the DS18B20 is on the same perfboard. I got MSP430G2553 chips from a time that TI was more or...
  14. Hi, One of the easiest ways to achieve this is...

    Hi,

    One of the easiest ways to achieve this is to use NRF24L01 RF transceivers. There's loads of code out there that show how to send/receive data with these. For each room you need a...
  15. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    AUTORECORD issues

    Hi,

    Edwin has done some good testing and found out that the AUTORECORD is not yet working as planned. This is the case for V1.0 and also for the more recent update. I am currently busy (together...
  16. Hi, In the batdetector project (...

    Hi,

    In the batdetector project ( https://forum.pjrc.com/threads/38988-Bat-detector ) we use the oscillator function at very high samplerates (up to 352k) without any problems. In the heterodyne...
  17. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi, Ive just uploaded a hex where the HiF_bin...

    Hi,

    Ive just uploaded a hex where the HiF_bin is not used anymore, this is a direct link https://github.com/CorBer/teensy_batdetector/blob/master/pre_compiled_hex/firmware_DEV20200904.hex
    ...
  18. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Instead of changing the HiF_bin (used currently...

    Instead of changing the HiF_bin (used currently in the detection of ultrasound) its also an option to completely remove the test, the Hif_bin is only used in this line of code of bat_fft.h
    if...
  19. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    In the startrekversion I chain a heterodyne-mixer...

    In the startrekversion I chain a heterodyne-mixer after the time-expansion. This allows you to hear the sounds from 0-100000 Khz as a band from -5Khz to 5Khz with the TE_expander on 1/10. Not ideal...
  20. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi, We could make the HiF_bin simply half the...

    Hi,

    We could make the HiF_bin simply half the samplerate minus 5Khz or so ? Since I dont think at the top of the range will be as sensitive ?

    Cor
    PS: I could also open the startrek version :)...
  21. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hope you like it !

    Hope you like it !
  22. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    The update is available as a hex and its a...

    The update is available as a hex and its a "trial" version. Everything should work as before but the detector-screens will be different and will show the calls more detailed. Next to that if you want...
  23. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    21504 Sometimes ... i wished I would hear a bit...

    21504
    Sometimes ... i wished I would hear a bit more bats around my house. Most evenings when I try to test functionality of the batdetector I can hear crickets/grasshoppers and if I am lucky one or...
  24. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi Craig, Never tried that, I dont know what...

    Hi Craig,

    Never tried that, I dont know what spectra and power a powerline emits.

    regards
    Cor
  25. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi Frank, Thanks for the help, I see that this...

    Hi Frank,

    Thanks for the help, I see that this will take considerable time to create. For the moment being I am letting this rest.

    regards
    Cor
  26. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    @DD4WH Frank I would like to incorporate the...

    @DD4WH Frank

    I would like to incorporate the ZoomFFT in the Teensy_batdetector. That way we could look (in more detail) at the more interesting part of the spectrum instead of looking at the full...
  27. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi, I like to hear/see people come up with new...

    Hi,

    I like to hear/see people come up with new ideas, combining two MEMS ... interesting !! Using the ADC ... questions .

    Just to add my grain of salt ... as I am mainly busy with the software...
  28. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi Ivano, Welcome in this project, I hope you...

    Hi Ivano,

    Welcome in this project, I hope you can share your experience with the teensy-batdetector as soon as you have build it. I am especially interested to hear/see how the different...
  29. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi Hendrik, I looked at the Mini-Con-X...

    Hi Hendrik,

    I looked at the Mini-Con-X connectors before but found them way to expensive.

    regards
    Cor
  30. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    New teensy_batdetector V1 beta sourcecode and hex released

    Hi,

    I have just uploaded the most recent code for the teensy_batdetector. Its available from https://github.com/CorBer/teensy_batdetector
    A lot of work during testing of this version in previous...
  31. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Interesting to see how it performs. I am using...

    Interesting to see how it performs. I am using plugs on my detectors also, thusfar I have used a GX16 connector but the one that I am currently building I am trying to see if using a 3.5mm...
  32. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi Hendrik, Thanks for sharing that article, I...

    Hi Hendrik,

    Thanks for sharing that article, I have seen it before. We are interested to hear from you how good that SMX-US microphone works in the current setup. The article mentions that these...
  33. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi Hendrik, Nice from you to share the...

    Hi Hendrik,

    Nice from you to share the experience ! The PCB from edwin is a great addition to this project as it makes the building so much easier.

    regards
    Cor
  34. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi, For those interested, you can download the...

    Hi,

    For those interested, you can download the beta version of the TeensyBatDetector V1.0 from https://github.com/CorBer/teensybat_V1_beta
    This is NOT yet the finished product so you might...
  35. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Wrapping up code development for V1.0

    Hi,

    Edwin (THANKS !!) and I are currently working on testing a completely renewed version of the TeensyBatdetector. Several of the requests posted in the forum have found a place in this version...
  36. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi Zach, Thanks for sharing! Lets hope this...

    Hi Zach,

    Thanks for sharing! Lets hope this encourages more people to hear bats and other animals. On your great webpage I also see you have experience with hydrophones, one of my hopes is that we...
  37. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi Zip, I did some readup on #2 of your...

    Hi Zip,

    I did some readup on #2 of your requests and added 2 links to older discussions on this forum that might be helpfull. I think the graph in...
  38. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi, Nice to see that you are adding something...

    Hi,

    Nice to see that you are adding something to this project by opensourcing your design for an enclosure. THe noise on 23Khz is something Edwin and I also have been exposed to. Having an TFT...
  39. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi all, Currently I am (together with Edwin)...

    Hi all,

    Currently I am (together with Edwin) working on part of the code for the Teensy Batdetector, if there are requests for features or changes in features or bugreports please tell us.
    ...
  40. Hi Ivan, Thats great !! regards Cor

    Hi Ivan,

    Thats great !!

    regards

    Cor
  41. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi, Yes, the code from my github page (...

    Hi,

    Yes, the code from my github page ( https://github.com/CorBer/teensy_batdetector ) uses a routine called set_SR that does this. For the teensy 3.6 !!! this sets the DIVIDE and FRAC frequencies...
  42. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Is that including the logger-board ?

    Is that including the logger-board ?
  43. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Sounds like a standard heterodyne detector, I...

    Sounds like a standard heterodyne detector, I hope you can build/test this for yourself. I wonder if the total price for this (the ardubat-logger) is however not close to the detector we are...
  44. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi, According to me that project was mainly...

    Hi,

    According to me that project was mainly set up to remotely record bat activity, not to listen actively to bats with headphones. But if that is what you were planning to do I am sure it will be...
  45. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi Edwin We could change the high-encoder...

    Hi Edwin

    We could change the high-encoder knobs for rotational-switches on the side. I havent looked for those but I am sure they can be found. That would keep the setup thinner.
    The rotary...
  46. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi, If you have ideas/requests please share...

    Hi,

    If you have ideas/requests please share them and ... we are always interested to see your compact detector. Which hardware do you plan to use ?

    regards
    Cor
  47. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi, I do not think it is possible to create...

    Hi,

    I do not think it is possible to create this on an ESP8266 or ESP32. Many of the routines used to make the detector run are based on the audio-system that is designed for the teensy. The code...
  48. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    As always I have also added a pre-compiled...

    As always I have also added a pre-compiled version on my github:

    https://github.com/CorBer/teensy_batdetector/blob/master/pre_compiled_hex/firmwarecorbee_v100.hex

    regards
    Cor
  49. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi Zach, Considering 2 buffers and interupting...

    Hi Zach,

    Considering 2 buffers and interupting the current play, I dont know if that would be wise. If you have picked up a signal and start slowing it down with TE when can we infer that initial...
  50. Thread: Bat detector

    by CorBee
    Replies
    651
    Views
    60,695

    Hi Zach, Welcome to the forum. Its always nice...

    Hi Zach,

    Welcome to the forum. Its always nice to see new ideas/users actively participating. On to your ideas/questions:

    The current setup of AUTO_TE is set to start an AUTO_TE replay (from...
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