ASPRO-4M v.2.0 development board

Main Specifications

1) ASRPRO Chip Specifications

Parameter Description

Recognition Rate Above 98%

Recognition Distance Up to 10 meters

Recognition Response Time Less than 0.1 seconds

System Frequency 240 MHz

SRAM 640 KB

FLASH Built-in 2MB / 4MB (two options)

Algorithm Supports DNN/TDNN/RNN neural network operations, voice recognition, keyword recognition, speech enhancement, speech detection, single-mic noise reduction, single-mic echo cancellation, 360-degree far-field pickup, etc.

Clock Built-in high-precision RC oscillator, no external components or crystal needed, temperature drift < 2%

UART Interface 3 channels, supports up to 3M baud rate

IIC Interface 1 channel, can connect to external IIC devices for expansion

PWM Interface 6 channels, can directly drive lights and motors

GPIO Interface 10 channels, can be used as main control IC, some GPIOs support 5V signal direct communication, no external level shifter needed

Power Supply Range Supply voltage: 3.6V ~ 5V, current: 500mA

Operating Temperature -40°C ~ 85°C

Storage Conditions -40°C ~ 100°C, humidity < 5% RH

Voice module ASR PRO-V2.0 development board 2MB/4MB Offline intelligent voice recognition.