By the way, you have a img.getImgSize() method, there is no need to use sizeof. More conversions can be performed to the image by using this method:

img.convertPixFormat( CAM_IMAGE_PIX_FMT_GRAY );

Have fun!

Hello @jayaprasad,

I'm sorry for the slow response. I found a previous post in the forum regarding this module in the SDK that you might find interesting:
https://forum.developer.sony.com/topic/104/how-to-bring-up-the-network-in-spresense?_=1623396622282

I also found an implementation that uses the ESP8266 in an SDK app - I actually think it is the same one that is mentioned in that other thread. if you send me a private message with your email address, then I will share the source code it to you.

BR
Tobias

@Jorge-Enrique I think it shouldn't be a problem. The SPI interface is what you should use for Spresense to communicate with the display.

Hi @Grawave

It's very strange. Could you please try to do the same with the other pins. For example, try pin D5 on the extension board and pin D20 on the main board.

Please let me know if it gives the same result.

Best Regards,
Kamil Tomaszewski

Hi @marshallbrown123

Glad to hear you're interested in the CXD5602

Please complete the form on this page: https://developer.sony.com/develop/spresense/purchase-inquiries and we will contact you.

Best Regards,
Kamil Tomaszewski

Hi @KamilTomaszewski,
thank you very much for your reply, I now understand. What a pity that there is not an easy tool to do it 😕
Best regards,
Ivan

Hi @Arco

I'm glad to hear that. 🙂

@aaronm Awesome that you got it working and thanks for sharing your findings! 🙂

Hi @dhalbert,

CXD5602 has 7 endpoints.

However CXD5602 doesn't support a same endpoint number with different direction IN and OUT (e.g EP1 OUT & EP1 IN cannot exist together). The only exception is EP0.

I hope it will help. 🙂

Best Regards,
Kamil Tomaszewski

Hi @Berkay-Isik
Spresense has 4 PWM with 1 channel each:

/dev/pwm0- pin 6
/dev/pwm1 - pin 5
/dev/pwm2 - pin 9
/dev/pwm3 - pin 3

If you want 2 PWM outputs, you need to open two devices (open()) and then call ioctl() on each of them.

You can look at the PWM implementations in CircuitPython: https://github.com/adafruit/circuitpython/blob/main/ports/cxd56/common-hal/pwmio/PWMOut.c

I hope it will help. If anything is unclear please ask.

@TE-KarlKomierowski Thanks for the advice Karl. It will likely not be with color.. I just used these beads as examples .. to see if it can be done easily. thought that if the pellets are changed to other items, neural networks can be used to train new objects and models can be replaced to identify new items. .

Hi @Jodie_space!

Unfortunately there is no built in support for recording to a video file on the SD card. There are two camera data streams available: one for taking still pictures and one for showing a preview video like you have in a "regular" digital camera. No support for actual video recording.

Now, it doesn't say exactly what your project is supposed to do or what you want to use the video for, but perhaps it would be possible to generate the actual video file as a post processing step? This might work If you don't intend to use the actual video file on the Spresense board itself after recording. In that case you could save the frames from the preview video as separate image files on the SD card instead of displaying them on a display etc. Then, when the recording is finished, plug the SD card into your PC instead and combine them into a video file using an external tool such as ffmpeg.

This workaround might not work for you - it depends on what you want to accomplish - but it is the simplest solution I can come up with. 🙂

I found this similar thread that might be interesting to you:
https://forum.developer.sony.com/topic/133/capture-video-from-spresense-camera-board-using-arduino/7

BR
Tobias

Hi @monotaskr,

Nice to hear about your ideas! Unfortunately I am not able to help out with the actual project design so I will just give some generic recommendations to help you get started 🙂

As a first step I'd suggest you have a look at the sample applications available in the Spresense SDK and/or Arduino library if you haven't already. Getting an idea of how audio works in Spresense and what it can do might help you decide the scope and direction of your project. The audio system might seem a bit complicated at first, but start playing around a bit with the samples to get a feel for it. There are several audio related apps in both the Arduino and SDK development environments, but remember that they are just examples. Don't let their scope limit you!

Then you can start to think about what sampling devices you think are suitable for your project and figure out what adaptations might be needed to connect them to the Spresense mic inputs.

Here are some general pointers to interesting audio related sections in the documentation:
https://developer.sony.com/develop/spresense/docs/sdk_developer_guide_en.html#_audio_subsystem
https://developer.sony.com/develop/spresense/docs/arduino_developer_guide_en.html#_audio_library
https://developer.sony.com/develop/spresense/docs/hw_docs_en.html#_how_to_use_microphones

You might also find this forum thread interesting if you haven't seen it already:
https://forum.developer.sony.com/topic/172/microphone-array-suitability/2

I hope it helps!

BR
Tobias

@tornedoar said in main board Digital I/O:

@TE-KarlKomierowski yes you are totally right, it would be a lot easier, but the company I work in, want everything in the cheapest way !!!!

Ok, I understand.
I don't know if it is of any help but the schematics for the extension board is open and free to download. So if you prototype with the extension board you should be able to copy the parts of the design that suits your needs. It could save time doing so (and money) for your company.

Just a comment, you can ignore this if it is not feasible for you.

Here is a link to the schematics: spresense-hw-design-files

Hi @tornedoar

Unfortunately, Spresense is not supported in Matlab. If you want to use Arduino on Spresense then use Arduino IDE. Here is a link on how to get started: https://developer.sony.com/develop/spresense/docs/arduino_set_up_en.html

You can use the same libraries and code as on Arduino. However, there are some differences: https://developer.sony.com/develop/spresense/docs/arduino_developer_guide_en.html#_functional_differences

I hope this will help you.

Best Regards,
Kamil Tomaszewski

Sorry, has taken me time to get back to this problem, once I make the suggested change the error I got previously no longer appears when I compile the code. I now get other issues but that appears to be due to board differences.

Thank you

Great, thank you!

Kamil,
I used the difference in your source in SDK 2.0:

Move 'theAudio->startRecorder(); to the end of the main setup(), after everything else is setup. Use MP3 instead of WAV.

It works. Thank you!
I still prefer to record .WAV files. Will you continue to look for the bugFix, and could you please let me know when it works.
Thank you again
M.Lewis

Kamil,
Yes, using boardctl() does work and provides the UniqueID from Arduino. Thank you! 👍 I guess <sys/boardctl.h> is included in one of my other includes since I didn't need it.
M.Lewis