NGW-1pc Grove - Speech Recognizer

Description
Grove speech recognizer is a designed for voice control application such as smart home, smart toy, voice control robot, anything you would like to control through voice, it worth a try. The board includes a Nuvoton ISD9160, a microphone, 1 SPI flash, 1 grove connector, 1 speaker connector and 1 led to reflect to your voice.

Nuvoton ISD9160 is a system-on-chip product optimized for low power, audio record and playback with an embedded 32-bit microcontroller core. It provides strong and economic solution for voice control applications. ISD9160 is not the only amazing thing in this grove. Lets 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? It wont happen this time! 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.

This speech recognizer can recognize 22 pieces of 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. We have tested it for hours to make sure it possesses a high recognition rate and a very low false trigger.

Here are some notes that you must know before using it: Awaken
Word: Hicell (Please pronounce it as one word) When it recognizes the awaken word, LED turn red, then you can say the command word, if it recognizes the command word, LED will turn blue.


Note

The package does not include speaker.

We have developed more than 400 Grove modules, covering a wide range of applications that can fulfill various needs. Click to explore the Grove Sensor family and get started to Grove your Idea. For all Grove users (especially beginners), we provide you with guidance PDF documents. Please download and read through Preface - Getting Started and Introduction to Grove before your use of the product.

Application
Internet of Things
Smart House
Human Machine Interface
Lighting Control
Sensor Hub
Robot

Specifications

Size

40*20mm

Weight

G. W 5g

Battery

Exclude

Operating Voltage

3V-5V( 3.3V typical)

Operating Current

At VCC = 3.3V 25, 25mA-80mA@playing, 26.5 mA (typical)

Operating Current

At VCC = 5V 25, 25mA-130mA@playing, 26.5 mA (typical)

Operating Temperature

0-85

Flash

2Mbytes

Microphone Sensitivity

-43dB to -37dB at VCC = 5V 25

Microphone SNR

58dB

Microphone Directivity

Omni-directional

Speaker Power

1W

Processor core

Cortex-M0

Processor Frequency

32.768MH z (typical), 50MHz(MAX. )

Default Baudrate

9600

Hardware Overview


1. Grove Connector
2. Red Led - lights when "HIcell" is recognized
3. Blue Led - lights when a command is recognized
4. Speaker Connector - You can connect a speaker to get the voice return
5. Microphone
6. ISD9160CFI - controller

Part List
Grove - Speech Recognizer

*1

Grove - Cable

*1