Price: $29.20
(as of Jun 05, 2024 20:36:18 UTC – Details)
Product Description
Parameter
Product Size 3.7cm*5.5cm Supply voltage 3.3V and 5-12V Communication method Serial communication IO port output High level 3.3V Production Process STM patch processing Recognition distance 3 meters in quiet
Interface description
Characteristic
Person-independent speech recognition|
3 meters recognition distance
3.3V/5V power supply
Recognition rate 85% -95%
TTL serial communication
Built-in high-definition microphone
Support dual serial port and IO port dual output
Function
No programming required, suitable for beginners
We have made many improvements to the module, and it is easy to operate the module without the need for electronic foundation.
Instructions for use:
Directly send pinyin through the computer software terminal to set voice keywords, no need to change the source code, simple operation
Password keywords can be erased and written at will
Supports directly adding and erasing keywords through the serial port, supports one-key importing of txt format files, and sets user-friendly settings
Support three major recognition and detection modes
The module is leading and supports three identification and detection modes: cycle, password, and button, which can be customized according to your needs
Support three major recognition detection modes
The module is leading and supports three identification and detection modes: cycle, password, and button, which can be customized according to your needs
Loop detection mode: Continue to detect surrounding sounds until the recognition is successful.
Password detection mode: Control an action by two commands within 8 seconds, and can be identified by two command modules
Button detection mode: Press the button once and give instructions within 8 seconds to recognize it, and then press the button again to recognize it again after 8 seconds.
Support dual serial port and IO port dual output
FAQ
Q: How many sentences can this speech recognition module recognize? Can it recognize English?
A: This module can recognize 50 sentences (dialogue); it can only recognize Mandarin, and the recognition principle is pinyin recognition.
How far is the recognition distance? Is the recognition rate high?
In a quieter environment, the distance is about 3 meters, the chip company announced that the recognition rate is more than 90%, and the customer feedback is more than 85%
Q:Can I modify the keywords myself? How to modify?
A: You can modify the recognition sentence by yourself, enter the pinyin in the software terminal to modify
Can an external microphone be connected? Can a microphone that is 1 meter or farther away?
An external microphone can be connected. The longest extension cable is recommended to be 20cm. Too long and large loss will affect identification
Dual serial port and IO output voice and speech recognition automatic speech recognition ld3320 voice recognition
dual serial port + IO output
3.5v/5v power supply
non-specific person speech recognition
Three identification detection modes
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