Smart Home Automation with Voice Command (tutorial)

Activate your electronic equipment using voice command.

Use the “Smart Home with Voice command” app to control your electronic equipment via Android phone.
- Build your own circuit  and learn how to use Arduino and Bluetooth module.

 Tutorial below.

Google Play Store link

Smart Home with Voice Command (tutorial)

This is a step-by-step tutorial on building the circuit for Smart Home automation with voice command feature.

Requirements:

• Arduino Uno
• LED
• Resistor (220 ohms)
• Bluetooth Module (BlueSmirf / BlueMate Silver)
• Android app (Smart Home with Voice Command)

1st step

Connect all the components to your breadboard.

Figure  1 (Make sure all connections are correct)

2nd step

     Figure 2 (Arduino Uno)

• Connect the Black wire to Gnd of the Arduino Uno (as shown in Figure 2)
• Connect the Red wire to Pin 12 of Arduino Uno (as shown in Figure 2)

3rd step

• Download the latest IDE at Arduino website.
• Copy & paste the code below to your Arduino IDE.
• Then, upload the code.

Figure 3 (Arduino IDE)

// code starts here

const int smartLed = 12;
byte smartHome;

void setup()
{
// Serial communication:
Serial.begin(115200);
// smartLed as an output:
pinMode(smartLed, OUTPUT);
}

void loop() {

switch (smartHome) {

case 1:

digitalWrite(smartLed, HIGH);
break;

case 2:

digitalWrite(smartLed, LOW);
break;

case 3:

digitalWrite(smartLed, HIGH);

delay(100);
digitalWrite(smartLed, LOW);
delay(100);
}
}
void serialEvent(){
smartHome = Serial.read();
}

// code ends here

4th step

Figure 4 (Smart Home with Voice command app)

• Download & install mobile apps at Google Play Store
• Turn on your Bluetooth from your Android device.
• Press “Scan” and look for Bluetooth device (e.g. Firefly E5D6)
• Bluetooth name can be found at the top right side of BlueSmirf / BlueMate.
• Look for 4 characters (e.g. E5D6)
• Open your Smart Home with Voice Command app.
• Press “Not connected” and look for your Bluetooth device (e.g. Firefly E5D6)
• You should be able to see “Connected”.
• Start testing by pressing the circle ON/OFF button.
• Test the voice command by pressing the waveform then say “ON” to turn ON.
• Test the voice command by pressing the waveform then say “OFF” to turn OFF.

Additional information:

LED is a device that emits light when electricity passes or voltage is applied.

It consists of 2 terminals where long leg is positive (+) & short leg is negative (-)

Resistor is a device use to limit the flow of current.

Bluetooth Module

Solder all wires one by one except CTS & RTS they must be solder together as shown in below figure.

 Figure 5 (Arduino Uno & BT module)

• Connect the following wires from Bluetooth module to Arduino Uno.

VCC = 3.3V

Gnd = Gnd

RX =TX

TX = RX