AI offline intelligent voice recognition control module can modify the wake-up word, compatible with Arduino far exceeds LD3320, a new generation of voice recognition technology, the recognition rate and sensitivity are higher than similar products, the recognition rate is as high as 98, and 150 entries can be customized; support electricity level, serial port, support signal trigger, etc.
Module parameters:
| Specification | parameter |
| PCB size | 54*36*1.6mm |
| Operating Voltage | 5V |
| Working current | 60mA |
| Communication Interface | TTL |
| USB Micro Power Port | 1 |
| User common GPIO | 9 (PA25, PA26, PA27, B0, B1, B2, B3, B6, B7) |
| USB female port | 1 |
| PH2.0 2P speaker interface | 1 |
| Support speaker specifications | VCC=5V, under 4Ω load, provide up to 2.9W output power |
| VCC=5V, under 8Ω load, provide up to 1.8W output power | |
| High-sensitivity high-gain microphone (-28DB) | 1 |
| Support interface | UART/GPIO/ADC/PWM/SPI/I2S/I2C |
Module features:
• 32bit RISC core, running frequency 240M
• Support DSP instruction set and FPU floating point operation unit
• FFT accelerator: supports up to 1024 points of complex FFT/IFFT operations, or 2048 points of real FFT/IFFT operations
• Built-in high-speed SRAM, built-in 2MBFLASH
• Built-in 3W mono class AB power amplifier
• Support 1 channel electret microphone
• Support 12Sinput/output
• Support 5V power input
• Built-in 5V to 3.3V, 3.3V external load does not exceed 150mA
• RC12MHz clock source and PLL phase-locked loop clock source
• Built-in POR(PoweronReset), low voltage detection and watchdog
• All GPIOs can be configured as external interrupt inputs and wake-up sources
• 1 standard SPIMaster interface, the highest rate is 30MHz
• 1 SPISlave interface with a maximum rate of 30MHz
• 1 full-duplex UART with a maximum rate of 3Mbps.
• 1 x 12c master/slave controller up to 400kHz
• 2 PWM outputs
• 1 12-bit SAR-ADC maximum 450Khz sampling rate
Module function:
1) Support custom start-up broadcast voice
2) Support custom command words and reply words
3) Support custom reply words
4) Support custom serial port output
5) Support custom GPIO port control
6) Settings can be modified unlimited times
7) A variety of human pronunciations can be set
8) Personalized audio can be uploaded
9) Support delayed output
10) Support PWM, pulse output
11) Support power-off memory
12) Support wake-up-free control with one sentence
13) Support jog control
14) Support dialect recognition
Arduino development board serial communication connection example:
Four-way relay wiring diagram:
The voice module and the four-way relay are connected directly with 4P terminals (as shown in the figure above), VCC is connected to VCC, RXD is connected to TX1, TXD is connected to RX1, GND is connected to GND, and it is very simple to connect directly with the serial port.
DC motor connection diagram:
AC motor connection diagram:
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