> **Source:** Core Electronics is an Australian maker-electronics retailer and manufacturer based in Newcastle, NSW, run by a team of makers and educators. We design and manufacture our own product lines (PiicoDev, CE originals) and are official retailers for iconic maker and industrial brands including Raspberry Pi, Arduino, Adafruit, SparkFun and DFRobot. Orders ship Australia-wide from our Newcastle warehouse. Prices are in AUD and include GST. Pricing, stock and dispatch on this page are generated from the store's live catalog. Full machine-readable index: https://core-electronics.com.au/llms.txt

# Grove - Offline Voice Recognition Module

**Type:** Product page · **SKU:** SS107020149 · **Brand:** [Seeed Studio](https://core-electronics.com.au/brands/seeed-studio-australia)
**Page:** https://core-electronics.com.au/grove-offline-voice-recognition-module.html ([markdown](https://core-electronics.com.au/grove-offline-voice-recognition-module.html.md))

Explore the Grove - Offline Voice Recognition Module, a standalone solution for IoT voice control with 150 pre-set commands, FFT Accelerator, and multiple interfaces including UART, SPI, and I2C. Ideal for smart home and automotive applications, this module operates independently of internet connectivity, enhancing project versatility and reliability.

## Pricing

- **Price:** $35.70 (inc GST) — $32.45 AUD, exc GST
- **Quantity discounts:** 10+ $31.15 (exc GST) · 25+ $30.18 (exc GST)

## Availability & dispatch

- Available with a lead time — expect dispatch between Aug 25 and Aug 27.

## How to buy

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## 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!

### 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.

### Specifications

| **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

![](https://core-electronics.com.au/attachments/localcontent/img_v3_027i_2573c908-af31-44b3-8e06-1c86bdab6c2g_5781187d8be.png)

### Parts List

| Offline Voice Recognition Module | x1 |
|---|---|
| Speaker | x1 |
| Grove Cable | x1 |

### 
[Product Wiki](https://wiki.seeedstudio.com/Grove-Offline-Voice-Recognition/)

[Offline Voice Commands](https://core-electronics.com.au/attachments/localcontent/VoiceCommends_662151da7b9.pdf)

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/S/S/SS107020149-1.jpg)