LU-ASR01 Intelligent speech recognition control module

Product Introduction

LU-ASR01 is a low-cost, low-power, small size, high-performance offline speech recognition module. It is easy to operate and fast to use. It allows users to quickly learn how to develop and use it in 3 minutes. The module has a very high degree of integration, integrates speech recognition, speech reply, IO control (multiple signal output) serial port output, temperature and humidity broadcast and other functions, and has one click download function, wireless Downloader Only one USB cable with type-C interface is needed to realize one click download, which is convenient for customers to change entries frequently for testing

1. 10 meter long distance wake-up.

2. 98% high recognition rate.

3. Customize 5 wake-up words and 200 recognition words.

4. One button burning function, no need for any Downloader, one USB direct burning.

5. With 3W power amplifier and external 4Ω /3W speaker.

6. Circular configuration, no programming, directly modify the entry and then burn it.

7. 8 IO ports, which can output PWM, high and low level, pulse signals, and steering gear signal without programming.

8. It can output one channel of serial port, optional hexadecimal and character data, and the baud rate is 1200-115200.

9. It can be connected with one DH11 or DS18B20 sensor to broadcast temperature and humidity.

Product Parameters

IO port: there are 8 channels of IO, which are IO1~1O8 respectively. Among them, IO1~IO6 can output PWM signals, and can also be used as ordinary IO. IO7~IO8 are ordinary IO, and can output high and low levels, pulse signals, and steering gear signals

Standby power consumption: 10mA

Power supply range: 3.6-5.8V. Generally, 5V power supply is used, and the power supply current is greater than 500mA

Working temperature: -20℃~80℃

Horn parameters: 8 ohms, 3W power

Size: 37*37mm

CPU characteristics

32 bit RISC-V core CPU, operating frequency 180M

Support DSP instruction set and FPU floating-point arithmetic unit

FFT accelerator and size limit support 1024 point complex operation

Built in high-speed SRAM, built-in 4m, FLASH

Pin Definition

5V: 3.6-5.8V. Generally, 5V power supply is used, and the power supply current is greater than 500mA

G: Power ground

TX: serial port output, baud rate and data type can be set on the upper computer

DHT: can be connected to DHT11 or DS18B20 sensor

IO8: ordinary IO, support high and low levels, pulse signals, steering gear signals

IO7: ordinary IO, support high and low levels, pulse signals, steering gear signals

IO6: advanced IO, support high and low levels, pulse signals, steering gear signals, PWM signals

IO5: advanced IO, support high and low levels, pulse signals, steering gear signals, PWM signals

IO4: advanced IO, support high and low levels, pulse signals, steering gear signals, PWM signals

IO3: advanced IO, support high and low levels, pulse signals, steering gear signals