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Voice Recognition module stuck when trying to record audio

Posted: Sun Aug 11, 2019 5:14 am
by TechAaron
I have just received one of the Geeetech Voice Recognition modules and am unable to record commands. Every serial command I try works, except when i send "AA 11" to begin recording, the module returns "Start" over and over again, it never returns "Again" or "No voice" or any other signal, just "Start, Start, Start..." and the only way to stop the device is to unplug the GND or VCC pins and restart it.

Any help would be appreciated.

Thank you

Re: Voice Recognition module stuck when trying to record audio

Posted: Mon Aug 12, 2019 9:33 am
by William
Hi, Can you provide specific videos or pictures?

So that we can solve the problem better.

Re: Voice Recognition module stuck when trying to record audio

Posted: Mon Aug 12, 2019 10:36 am
by TechAaron
Hi,

here is a screenshot of AccessPort where tried testing the system. i entered AA 00 and the device responded with "waiting!" and then I entered AA 11 so start recording, and it displayed start over and over again and there was no way to stop it without unplugging the module.

Thank you

Re: Voice Recognition module stuck when trying to record audio

Posted: Mon Aug 12, 2019 11:10 am
by William
Hi, you can check the connection between voice recognition module and USB-TTL module is correct.

TXD pin on voice recognition module should be connected to RDX pin on USB-TTL module.

RDX pin should be connected to TXD pin.

If the connection is correct, please check the baud rate of serial software is set correctly.

The baud rate for the voice recognition module defaults to 9600bps.

Re: Voice Recognition module stuck when trying to record audio

Posted: Mon Aug 12, 2019 1:01 pm
by TechAaron
The baudrate is set to 9600, however I am not using a usb to ttl, I am interfacing through an arduino UNO. I have bypassed the processor on the arduino so it is acting as a usb to TTL, and I imagine that if all of the other commands are working correctly, gathering input from the microphone should also work, but correct me if Im wrong.

Thank you.

Re: Voice Recognition module stuck when trying to record audio

Posted: Tue Aug 13, 2019 7:48 am
by TechAaron
I have also tried with a USB to TTL module and I get the same result

Re: Voice Recognition module stuck when trying to record audio

Posted: Tue Aug 13, 2019 9:18 am
by William
You can refer to this:
Write aa 36 in the send area of the serial port software,
and then click Send to switch the serial port receive mode to Common mode.
Finally, the 0xaa11 command is sent to enter the recording of the first group of voices.

Re: Voice Recognition module stuck when trying to record audio

Posted: Tue Aug 13, 2019 12:13 pm
by TechAaron
Hi,

I set the device to common mode again, and i got the same result:

Re: Voice Recognition module stuck when trying to record audio

Posted: Tue Aug 13, 2019 1:33 pm
by William
You can contact your sales to replace it.