Recently i bought the vc-02 offline voice module
But , i didn't know how to program this board,
Documentation is available on Ai thinker website,
But couldn't understand well, because of some are in Chinese language and some files not supported by my system , so any one please help me to how to write and upload program to this board as step by step processes
Maybe you can add a few links?
Google for some library? And a working example?
Tell us what your program needs to do?
It is usually much easier to get started from a working example. Most of us will not have this thingy...
You buy things with only chinese manuals? (And cannot read chinese at the same time)...
https://docs.ai-thinker.com/en/voice_module
Why this board ?, this is cheepest and excellent voice recognition module, it work similar to alexa , google assistant (offline) , we can turn on and off things by voice commands , this board can also respond to our commands , sensitivity is also amazed me
I want to program for home automation
Like turn on and off lights and fan etc
Except that you can't understand the documentation.
Ya 
This video is from Ai thinker can give you better idea about this product
So far you can nothing...
... that must be disappointing...
... and without examples and proper documentation we cannot help you (unless there is a chinese speaker around).
You got sucked in by advertising. Without proper documentation, the board is worthless.
https://docs.ai-thinker.com/en/voice_module
In this website ( Ai - thinker official) they provide documentation , problem is i couldn't understand
May be you can 
It seems not related to Arduino.
I am not really looking forward to find out how to get anything done with your chip...
Also, I haven't got the chip, so how could I see if the bootloader works? If the blink led sketch works after uploading?
I am afraid you came to the wrong forum...
Consider this chip as a sensor for Arduino 
Finally, programming the Kit is rather simple ... if one understands the procedure ! AI-thinker signalled me a sequence on YouTube and, after some testing and trying, I use this
- You don't need any JTAG programmer.
- First connect Your kit via the USB and install the serial driver found on the Ai-thinker page.
- In the Web SDK creating page (voice.ai-thinker.com), NEVER change the function of the pins in the first two lines : there is a warning about this. Otherwise You won't be no longer able to use this procedure. I use the pins at lines 7 and 8 as UARTS, the RX is useless and the output of TX is directly compatible with 5V systems.
- After creating Your vocabulary and commands (I suggest switching to English at the top of the page), select "make new version",
Now You have to wait until the system is ready (the boring "10 to 30 minutes"). And then select "download SDK". You get a file beginning with "uni_hb_solution" which You must UN-rar (My winzip didn't work), this creates a new folder "uni_hb_m_solution".
In this folder, navigate to the subdir "image_demo\Hummingbird-M-Update-Tool"
and double-click on the .exe file. This opens a new window, with a button labelled in Chinese at the bottom. Click on it, the COM related with Your kit will be highligted in yellow.
Now depress the reset button on the PCB and wait till the transfer has finished. And disconnect Your board.
Warning : if You use the wake-up-free function, You will get an infinite activation but You must define a real wake-up word (despite of the fact that it will be useless), otherwise the building crashes. And it seems that the sensitivity to commands used as wake-ups is less than for standard commands ; "they" claim that it is possible to do a wake-up by hardware, but I never found such a possibility on the SDK page. So, It would be fine if anybody could help me in this direction, Ai-thinker does not respond about this, maybe it is not (yet) possible via their interface ?
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I used them accidentally before reading this , can i revert back 
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