CONTROL THE DEVICES USING VOICE RECOGNITION- MSP430 ,GOOGLE API

CONTROL THE DEVICES CONNECTED TO MSP430 USING VOICE RECOGNITION

In this post , speech recognition from google API is used for controlling the devices connected to the micro controller. voice is converted to a low size format and sent over to google servers .The corresponding text will be returned from google. this text is again sent back to controller for control purposes.

Materials Required :

• Smartphone with internet .
• Relay(for controlling AC / high voltage devices)
• Bluetooth module.
• MSP430 launchpad controller.

1. Please read the Interfacing of Bluetooth-Module with MSP430-Launchpad before starting this project.
2. please read how to Interface relay with MSP430 to control devices 

NOTE : Since pin 2 and 3 are used for Bluetooth interfacing , please connect the transistor base to the pins other than 2 and 3 . In this Post the pin 4 is used for connecting the device as per the article how to Interface relay with MSP430 to control devices 


Combine and connect the circuit from the below links (USE PIN 4 INSTEAD OF 2 to connect relay)
 Interfacing of Bluetooth-Module with MSP430-Launchpad 
 how to Interface relay with MSP430 to control devices (Ex:Light)

Download the Android  APP 

link : DOWNLOAD EMBEDDEDHW APP

Android App from EmbeddedHW.com

• Click on the Home Button

Home screen of EmbeddedHw Android App

INTERNET IS REQUIRED FOR VOICE CONTROL

•  Turn on your Internet in the smartphone
•  Turn On the Bluetooth of the smartphone & Pair the device (password:1234)
•  Click on the connect button and select our device.
•  click on the voice control to speak

The speech will be converted to text using google API .This converted Text will sent to our controller using the bluetooth module.

EXAMPLE :-

you can turn on the LIGHT by saying "LIGHT ON". the controller will receive the text "LIGHT ON" from the smartphone.this text can be used to turn on the light . 

An example program is given below

byte ehw = 0; // incoming serial byte

void setup()

{

  // start serial port at 9600 bps:

  Serial.begin(9600);
 pinMode(4, OUTPUT); 

}

void loop()

{

  // if we get a valid byte, read analog ins:

while (!Serial.available() > 0)

    ehw = Serial.read();

   Serial.println(ehw);

if(ehw="LIGHT ON"){

  digitalWrite(4, HIGH); }

else if(ehw="LIGHT OFF"){

  digitalWrite(4, LOW); }

else 

Serial.println("Incorrect message");

delay(10);

  }