Arduino Voice Recognition Leave a comment

This tutorial uses the voice recognition module V3 to control the operation of three different LED within three different colors.

Step 1: Part List:

Hardware:

• Voice recognition module V3
• USB to TTL module
• Arduino NANO
• 3 LED (RED, GREEN, BLUE)

Software:

• Serial Tool ( I’m Using Accessport)

Step Two: Teach the voice Module:

This module can learn 3×5 voice command. (3 group, each group with 5, max 1300ms long command)

To teach, we need a serial tool: Accessport.

• Start the program, plug in the module with the USB to TTL board.
• From the Monitor/Ports menu, select the voice module. If not see, click refresh.
• In settings menu use this settings:
  • Baud rate: 9600
  • Parity bit: NONE
  • Data bit: 8
  • Stop bit: 1
  • Send format: HEX
  • Receive format: Char
  • Other settings as default.

– The first time, we need to choose “common” or “compact” mode.

• I’m using “common mode”. For this, send “0x36” to the board.: Just type after the “00000000” AA36, and click “Send”. If its ok, above you can see “common mode” text. The module now ready to learn.

• To teach the commands, send “0x11” to the module. (this mean, we record to the first group).
  • Type after the “00000000” AA11, and click “Send”.

– After appear the “START” word above, tell the first command, repeat if ask.

“Finish one” mean, you done with the command, immediately afterwards ask the 4 other command in same way.

“Group 1 finished” mean you are done, close the app, unplug the module,

Step 3: The arduino code

– After disconnected the voice module, connect the arduino, and upload this code.

Or download from my google docs. (Link in the video description)

– Leds connected to the pin 9,10,11. (use resistor)

– After code uploaded, unplug the arduino, connect the voice modul:

VCC to 5V

GND to GND

Rx to Tx

Tx to Rx

– Power on the arduino, wait 3-5 sec until ready.

– Talk to your arduino 🙂

int redPin = 9; 
int greenPin = 10;

int bluePin = 11; byte

com = 0; //reply from voice recognition

void setup() { Serial.begin(9600);

pinMode(redPin, OUTPUT);

pinMode(greenPin, OUTPUT);

pinMode(bluePin, OUTPUT);

delay(2000);

Serial.write(0xAA);

Serial.write(0x37);

delay(1000);

Serial.write(0xAA);

Serial.write(0x21);

}

void loop()

{

while(Serial.available())

{

com = Serial.read();

switch(com)

{

case 0x11:

digitalWrite(redPin, HIGH);

break;

case 0x12:

digitalWrite(greenPin, HIGH);

break;

case 0x13:

digitalWrite(bluePin, HIGH);

break;

case 0x14:

digitalWrite(redPin, HIGH);

digitalWrite(greenPin, HIGH);

digitalWrite(bluePin, HIGH);

break;

case 0x15:

digitalWrite(redPin, LOW);

digitalWrite(greenPin, LOW);

digitalWrite(bluePin, LOW);

break;

}

}

}