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Grove - Speech Recognizer
CHF 21.80
This product will be retired from our catalogue once it goes out of stock. It is only available in the quantity listed. 

Stock: 1

Using your voice to interact with things around you can always be one of the most interesting things to do with IoT applications.

The Grove - Speech Recognizer is designed for voice control applications such as smart home, smart toy, voice controlled robot or anything else you would like to control through your voice. The board includes a Nuvoton ISD9160 IC, a microphone, an SPI flash, a Grove connector, a speaker connector and a led for status display.

The Nuvoton ISD9160 is a SoC Chipcorder that is based on Cortex™-M0, it provides a strong and economic solution for voice control applications. The ISD9160 is not the only amazing thing in this Grove module. Let’s look at the microphone. Remember the uncomfortable moment when you have to speak directly and closely to the voice recognizer device to make sure it can hear you? Not with this module! The microphone on Grove - Speech Recognizer is omni-directional, which means that whether a user speaks into the microphone from the front, back, left or right side, the microphone will record the signals all with equal gain.

The Grove - Speech Recognizer recognizes 22 different commands including 'start', 'stop', 'play music' and so on. Every time it recognizes a command, it will return a value and then the loudspeaker that connected to it will repeat the command. This value can be used to control other devices like motor, music player.

How to use the Speech Recognizer:

  • Wakeup Word: Hicell (Please pronounce it as one word)
  • When it recognizes the wakeup word, the LED turns red, then you can say a command, if it recognizes the command, the LED will turn blue.

Note: The power of speaker should be lower than 1W to avoid any damage to the chip.


  • Local Voice Recognition
  • Very low rate of false triggering
  • Speaker connector (JST 2.0mm, a speaker is not included)
  • Built-in microphone
  • 3.3/5V working voltage
  • 22 recognition entries
  • Default Baudrate: 9600


This product was added to our catalog on Thursday 03 November, 2016.
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