Elechouse Voice Recognition Module V3

Model : MOD-00172

Supplier : Made in China

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Elechouse Voice Recognition Module V3

ELECHOUSE Voice Recognition Module is a compact and easy-control speaking recognition board. It supports up to 80 voice commands in all. Product package contains the voice recognition module and a compatible microphone.


- Support maximum 80 voice commands, with each voice 1500ms (one or two words speaking)
- Maximum 7 voice commands effective at same time

- Arduino library is supplied
- Easy Control: UART/GPIO
- User-control General Pin Output



Users need to train the module first before using it to recognizing any voice command. Training includes recording voices and writing what the module should send via serial pins when a voice is recognized. Any sound could be trained as command. That means it's not language dependent. After training it will only activate by the voice of the trainer, not another person even if he says the same words.



Check Documents section for User manual and Arduino Library (on Arduino IDE: Sketch > Include Library > Add .zip Library)

Click here for the official product page

Click here for a tutorial on controlling LED using this module using Arduino


  • Voltage: 4.5-5.5V

  • Current: <40mA

  • Digital Interface: 5V TTL level for UART interface and GPIO

  • Analog Interface: 3.5mm mono-channel microphone connector +  microphone pin interface

  • Size: 31mm x 50mm

  • Recognition accuracy: 99% (under ideal environment)

Login to post comments.
Tafhim_tanir | Aug 24,2020 at 12:15 AM
This module is working properly with Arduino Uno. But when I implemented this with Arduino mega, it is not working. Can you give me any solution?
A.R | Aug 25,2020 at 11:10 AM
Order number plz.

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