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!
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
Features
- Rich Peripherals: Support 1 analog Mic input and 4 digital Mic inputs and dual-channel DAC outputs;
- Wide Voltage Support: on-board voltage conversion circuitry, compatible with 3.3V/5V power supply;
- Smart Detection: Built-in POR (Power on Reset), Low Voltage Detection and Watchdog;
- Grove Interface: full-duplex UART up to 3Mbps.
Specification
- Size: 40*20*10mm
- 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
- Serial Rate: Default 115200 bps
- SPI Flash: 2MB (internal)
Part List
- 1x Offline Voice Recognition Module
- 1x Speaker
- 1x Grove Cable
Wiki
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