LD3320

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Hello everybody ...

On some "online shops" I found several LD3320 voice recognition based boards ... But neither connection details, nor software details and communication protocol ! Did anybody succeed in using them (in English, not Chinese ... smiley ) ? Thanks for any answer ...

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As with almost anything electronic these days there's usually a pretty strong chance that someone, somewhere has used it with Arduino. So I googled "LD3320 Arduino" and top hit was:

 

https://forum.arduino.cc/index.p...

 

Within that thread you get:

 

Datasheet: https://forum.arduino.cc/index.p...

How to Use it: https://forum.arduino.cc/index.p...

LD3320 Advanced cheats: https://forum.arduino.cc/index.p...

Development manual: https://forum.arduino.cc/index.p...

 

Should be enough to get you started I would think!

 

(a glance through those suggests an SPI interface so attaching to an AVR should be easy, on the other hand it looks to relatively complex so what you actually send/receive over SPI will likely be more work!)

Last Edited: Tue. Nov 3, 2020 - 09:21 AM
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Thanks for the answer ... I took a glance at the last link (development manual) and had unfortunately to admit : since the manufacturer doesn't have a configuration software, it becomes a "gaseous plant" ; I will rather try (again) SimpleVR by ElecHouse (which HAS such a software) ...

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lemiceterrieux wrote:
it becomes a "gaseous plant" ;
Not sure what that means - is it something like "interesting intellectual challenge"? ;-)

 

BTW what I was implying previously is "you are almost bound not to be the first person to do this" - so all you need to find is someone's (published) existing project that uses the device. For example if I google "LD3320 support library" among the hits I find:

 

https://github.com/realthunder/l...

 

The majority of the speech recognition code appears to be in:

 

https://github.com/realthunder/l...

 

(I love projects that put all the code in .h not .cpp!)

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Yes, code is on github ... in C ! I only use W7 and GCBasic. So, I think I will finally go to Elechouse, as I wrote : there are much less parameters to adjust, and communication is easier !