Spresense

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  Where do I get started with Spresense development?
  • DanielSand  

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  Getting started with Spresense using Arduino:
  https://developer.sony.com/develop/spresense/developer-tools/get-started-using-arduino-ide/set-up-the-arduino-ide

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  Future of Spresense and feedback on its design.
  • slipperyseal  

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  Hi @slipperyseal

  Thank you for taking your time and writing this feedback.

  Br
  Karl

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  Need BLE driver and application for nRF52832
  • TE-AmitSa  

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  Hi @TE-AmitSa ,

  Unfortunately we can't write any new software on request but only provide support if you decide to write this driver by your self.

  The following link might be helpful for you.

  https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v13.0.0%2Fnrf51_setups_serialization.html

  Br
  Karl

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  How to bring up the network in Spresense?
  • vivekbhadra  

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  Hi @Miguel-Ángel-Herranz

  You should have them now, I just sent you an email.

  Please let me know if it didn't work.

  BR
  Karl

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  LTE modem support in spresense
  • vivekbhadra  

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  Hi @TE-KarlKomierowski thanks again, didn't notice this until today, will havea look ASAP and get back on this. Thanks again. Cheers, Vivek

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  How to do connect a LCD with the SPRESENSE?
  • vivekbhadra  

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  Hi @TE-KarlKomierowski thank for the reply. Yes that's the bit I missed. It's working now.

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  Spresense board
  • MARCO  

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  Hi @MARCO ,

  If you have commercial plans/questions of this type I would recommend you to use this form to contact Sony: Purchase Inquiries

  Happy new year.

  BR
  Karl Komierowski

• Q

  How to set player_main as the SDK Application entry point?
  • QiangLi  

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  @KamilTomaszewski Thank you for this wealth of info.

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  Questions about spresense-aruino-compatible
  • ahoudeau  

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  K

  Hello @ahoudeau

  The source code that was used by the prepare_arduino.sh script is version 1.4.2. You can check the git log and see the tag.

  Version 1.0.0 here does not apply to the Spresense Arduino Library version but only to the version of your custom Arduino15.

  You can change this to 1.4.2. Change all occurrences of 1.0.0 to 1.4.2 in the Arduino15 folder.

  It will not change anything in the source code. Everything will be the same. Only the Arduino IDE will see that this is a different package.

  You shouldn't have any problems. Maybe try:

  In the Arduino IDE go to Tools-> Board-> Board Manager... and remove Spresense.

  Go to %userprofile%\AppData\Local\Arduino15 and remove packages and package_spresense_index.json and other files that have spresense in their name.

  Copy packages and package_spresense_index.json from spresense-arduino-compatible/Arduino15 to %userprofile%\AppData\Local\Arduino15

  In the Arduino IDE go to Tools-> Board and select Spresense.

  Do you use automatic updates in the Arduino IDE?

  BR

• 

  Unique ID for device detection.
  • heysadboy  

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  Hi @heysadboy

  Chip has Unique ID. And your application can get it by calling board_uniqueid().
  To call that, you need to include "board.h" on your c source file.

  Please try it.

  BR

• J

  Other image sensors?
  sensors datasheets imx • • JanKok  

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  @TE-KarlKomierowski I joyfully bought the Spresence kit partly because it is open source, open hardware. But I'm disappointed that it is so difficult to get detailed datasheets for Sony image sensors without signing an NDA. I don't want to worry about violating an NDA if I release hardware designs (e.g. an image sensor board) or code (e.g. driver for the image sensor) as open source. And I really don't see what is accomplished by keeping datasheets for released products confidential. Once a product is released, anyone can reverse engineer the pinouts, voltage levels, measure sensitivity, compare with competing products, etc.

  Whoever came up with the idea of the open source open hardware Spresence kit - I applaud them. And I wonder if we can prevail upon them to encourage the image sensor division to make their detailed datasheets for released products easily accessible from the company website? For example, at https://www.sony-semicon.co.jp/e/products/IS/industry/product.html

  I did manage to find ONE detailed, preliminary, non-confidential datasheet, for the IMX290LQR-C, at https://static6.arrow.com/aropdfconversion/c0c7efde6571c768020a72f59b226308b9669e45/sony_imx290lqr-c_datasheet.pdf . That's incredibly helpful, and if I can find someone to sell me a few of those sensors, I'll try to produce a camera board with that sensor that is compatible with the Spresence kit. And make it open hardware so anyone can make them, and maybe sell a few for a reasonable price if anyone wants them. Having an IMX290 camera board available would make it easier for other developers to use that sensor - which would benefit Sony. So there is a reason why datasheets should be made freely available!

  Really, I'd prefer to use the monochrome IMX290LLR, and I'd also like to compare and consider the IMX430LLJ and IMX433LLJ sensors as well. Could I get detailed datasheets for those 3 sensors?

• U

  Recorder_WAV -- Multiple Recordings
  • user1388  

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  @user1388

  Hi,

  This is a known issue. I have found a temporary solution for now. Unfortunately, this requires that you build the Spresense Arduino package again. You can use this: https://github.com/sonydevworld/spresense-arduino-compatible

  Currently, when an error is detected, the Audio module stops working. However, this can be changed and when FIFO OVERFLOW is detected, samples can be dropped instead.

  As a result, the application does not finish recording, but on the other hand does not guarantee that all samples will be saved.

  Solution:

  Find function bool AudioRecorderSink::write(const AudioRecSinkData_s &param) in the file sdk/modules/audio/objects/media_recorder/audio_recorder_sink.cpp

  Comment line number 84.

  Return true instead of false on line number 85.

  After the changes, the function should look like this:

  bool AudioRecorderSink::write(const AudioRecSinkData_s &param) { if (param.byte_size > 0) { if (CMN_SimpleFifoGetVacantSize(static_cast<CMN_SimpleFifoHandle *> (m_output_device_hdlr.simple_fifo_handler)) < param.byte_size) { // MEDIA_RECORDER_WARN(AS_ATTENTION_SUB_CODE_SIMPLE_FIFO_OVERFLOW); return true; } if (CMN_SimpleFifoOffer(static_cast<CMN_SimpleFifoHandle *> (m_output_device_hdlr.simple_fifo_handler), static_cast<const void*>(param.mh.getVa()), param.byte_size) == 0) { MEDIA_RECORDER_WARN(AS_ATTENTION_SUB_CODE_SIMPLE_FIFO_OVERFLOW); return false; } m_output_device_hdlr.callback_function(param.byte_size); } return true; }

  This is only a temporary solution. If I find other, I will let you know.

• 

  Camera app cannot detect SD card
  • vivekbhadra  

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  Hi @TE-KarlKomierowski as you said I pressed the SPRESENSE a bit on the extension board and seems the SD card is now working. So the issue was the SPRESENSE was not connected properly on the extension board.

  Thanks you very much for the help.

  Regards,
  Vivek

• R

  ESP8266 wi-fi access with Spresense
  • Robert McCain  

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  Hi @david,

  Thanks for the response!!

  Actually it looks like this developer is saying that the ESP8266-01 won't work with Spresense so he had to use the AdaFruit Feather. I can confirm that I have been able to get my ESP8266-01 module working at one point with Spresense, but for some reason it has completely stopped working. I wonder if my module is damaged somehow even though I am able to connect my module using an adapter board and run simple commands like blinking the lights.

• A

  Digital Microphones and Arduino
  • atw72  

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  Hi @atw72

  Could you try the following and see what the outcome is?

  #include <SDHCI.h> #include <Audio.h> SDClass theSD; AudioClass *theAudio; File myFile; bool ErrEnd = false; /** @brief Audio attention callback When audio internal error occurc, this function will be called back. */ static void audio_attention_cb(const ErrorAttentionParam *atprm) { puts("Attention!"); switch (atprm->error_code) { case AS_ATTENTION_CODE_INFORMATION: case AS_ATTENTION_CODE_WARNING : ErrEnd = false; break; case AS_ATTENTION_CODE_ERROR : case AS_ATTENTION_CODE_FATAL : default: ErrEnd = true; } } /** @brief Setup recording of mp3 stream to file Select input device as microphone <br> Initialize filetype to stereo mp3 with 48 Kb/s sampling rate <br> Open "Sound.mp3" file in write mode */ static const int32_t recoding_frames = 400; static const int32_t recoding_size = recoding_frames * 288; /* 96kbps, 1152sample */ void setup() { theAudio = AudioClass::getInstance(); theAudio->begin(audio_attention_cb); puts("initialization Audio Library"); /* Select input device as microphone */ theAudio->setRecorderMode(AS_SETRECDR_STS_INPUTDEVICE_MIC, AS_MICGAIN_HOLD, 68, true); /* Initialize filetype to stereo mp3 with 48 Kb/s sampling rate Search for MP3 codec in "/mnt/sd0/BIN" directory */ theAudio->initRecorder(AS_CODECTYPE_MP3, "/mnt/sd0/BIN", AS_SAMPLINGRATE_48000, AS_CHANNEL_STEREO); puts("Init Recorder!"); /* Open file for data write on SD card */ myFile = theSD.open("sound.mp3", FILE_WRITE); /* Verify file open */ if (!myFile) { printf("File open error\n"); exit(1); } theAudio->startRecorder(); puts("Recording Start!"); } /** @brief Record given frame number */ void loop() { err_t err; /* recording end condition */ if (theAudio->getRecordingSize() > recoding_size) { theAudio->stopRecorder(); sleep(1); err = theAudio->readFrames(myFile); goto exitRecording; } /* Read frames to record in file */ err = theAudio->readFrames(myFile); if (err != AUDIOLIB_ECODE_OK) { printf("File End! =%d\n", err); theAudio->stopRecorder(); goto exitRecording; } if (ErrEnd) { printf("Error End\n"); theAudio->stopRecorder(); goto exitRecording; } /* This sleep is adjusted by the time to write the audio stream file. Please adjust in according with the processing contents being processed at the same time by Application. */ // usleep(10000); return; exitRecording: theAudio->closeOutputFile(myFile); myFile.close(); theAudio->setReadyMode(); theAudio->end(); puts("End Recording"); exit(1); }
• J

  audio scope
  • JCPStevens  

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  Hi @JCPStevens ,

  Ok, let's sort this out once for all.

  I did the following on a Ubuntu machine to get this to work:

  git clone --recursive git@github.com:TE-KarlKomierowski/hackster_projects.git

  After that I opened Arduino IDE and from the Sketch menu I took Include library->Add .ZIP library
  In the file browser I selected the folder in the git repo as follows:

  ~/hackster_projects/spresense-audio-scope/arduino-lib
  I selected TFT folder and clicked OK

  I then opened arduino-scope-ino in the Arduino IDE and pressed the button Verify to build the sketch.

  This failed. It turns out that the TFT library defines a macro that is named swap and this is later being used in other libraries which confuses the build system.

  The quickes way to get around this for me was to simply add the following on line 7 to the arduino-scope.ino sketch:

  #undef swap

  The undef part must be between the include <TFT> and include <Audio.h>

  #include <TFT.h> /* Include TFT.h first, then Audio.h to avoid __SD_H__ being defined in the Audio.h. */ #undef swap #include <Audio.h>

  After doing this I can build the sketch.
  I have been using a Ubuntu PC with Arduino IDE version 1.8.9.

  I have built for target Spresense.

  Hope that this will work for you too.
  If you run into problems, please past your errorlog into your post and I will try to help out.

• 

  Batteries / Consumption and Safety
  • CGM11  

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  Thanks for the link and advice @TE-KarlKomierowski . I just need to do a quick and dirty demo without burning the Spresense in the process. I won't use those batteries on real deployments because they can easily leak toxic fluids.

  BR.
  Carlos.

• 

  NNC
  • CGM11  

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  @CGM11 said in NNC:

  @TE-KarlKomierowski Sorry Karl, I didn't see your answer. But as I told you, it is good for other people to know it as well, the NNC works pretty fine in a MacBook Pro using Parallels.

  Regards and thank you.

  Hi @CGM11

  Ok, thank you for the information!

  Br
  /Karl

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  How to insall software correct for Spresense Audio-Scope
  • JCPStevens  

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  Probably I get an error message when I try the git command because the ZIP download already exists. I thougt that the library file wasn't installed.
  But the next problem is that the example Sketch audio_scope already gives an error message by compiling it, and I don't have the knowledge to understand the code completely.
  Until now I thougt that the Sketch wouldn't work because the required library wasn't available.
  I have taken over the Sketch litterally from the Sony Spresense Sample Projects tutorials.
  What is here going wrong?

  Already thanks for the effort,
  greets Marc.

• 

  Writing directly to image Framebuffer - Spresense SDK
  • Cameron R MANN  

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  @TE-KarlKomierowski
  I enabled the DMA option as you suggested, but I did not notice any change to the severity of the flickering. I also checked ILI9340_SPI_MAXFREQUENCY and it was set to 40000000 just as your example.

  I agree regarding the NX graphics + framebuffer usage. No sense in re-inventing the wheel. Now that I have discovered a "hook" into the framebuffer, the NX documentation might make a little more sense. I will revisit and research a bit more.

  I will definitely keep this thread updated...I also think it is an important dev topic and worth digging into. Stay tuned!