Features

• FFT Accelerator: Supports up to 1024 points of complex FFT/IFFT operations or 2048 points of real FFT/IFFI;
• Rich Peripherals: Support 1 analog Mic input and 4 digital Mic inputs and dual-channel DAC outputs;
• Built-in voltage conversion：Supports 3.6V to 5V range power inputs and built-in 5V to 3.3V and 3.3V to 1.2V LDOs to power the chip;
• Smart Detection: Built-in POR (Power on Reset), Low Voltage Detection and Watchdog;
• Rich Interface: 1 full-duplex UART up to 3Mbps and supports SPI, I2C, ADC, and PWM interfaces.

Description

Online Voice recognition modules require a reliable internet connection to generate responses and are not independent of the Microcontroller/Processor controlling them. While one can create an offline voice recognition module using a compatible processor like RaspberryPi, and train a custom neural network to do this, it is not feasible for battery-operated edge devices

This Grove-Offline Voice Recognition Module is a truly offline voice recognition module with 150 pre-programmed voice commands, which can be communicated through UART. It features connections for the speaker and microphone, along with indicator LEDs. The power supply to the module is ESD-protected, adding more safety to the module. It is a perfect low-cost solution for adding voice control to your IoT projects!

We have developed more than 400 Grove modules, covering a wide range of applications that can fulfill various needs. Click to explore the  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  and  before your use of the product.

Application

• Home automation
• In-car systems
• Industrial control, Medical devices
• Consumer electronics
• IoT devices

Specification

Specification	Details
Size	18*17*3.2mm
Operating Temperature	-40°C~85°C
Storage	-40°C~125°C, <90%RH
Power supply range	Supply voltage 3.6V-5V, supply current >500mA
Supported interfaces	UART/I2C/PWM/SPI/GPIO
Number of available IO ports	10
Serial Rate	Default 115200 bps
SPI Flash	2MB (internal)

Hardware  Overview