Activated Home Automation Project by using Arduino For Smart Home
Components Required
- Arduino UNO x 1
- HC – 05 Bluetooth Module x 1
- Smart Phone or Tablet x 1
- 2N2222 NPN Transistor x 4
- 12V Relay x 4
- 1 KΩ Resistor x 4
- 1N4007 PN Junction Diode x 4
- Power Supply
- Connecting Wires
- Breadboard (Prototyping Board)
- App for transmitting voice to Bluetooth
Source Code:
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| <pre>#include <SoftwareSerial.h>const int rxPin = 2;const int txPin = 3; SoftwareSerial mySerial(rxPin, txPin);int ac=4;int light=5;int fan=6;int tv=7;String data;void setup() { Serial.begin(9600); mySerial.begin(9600); pinMode(ac, OUTPUT); pinMode(light, OUTPUT); pinMode(fan, OUTPUT); pinMode(tv, OUTPUT); digitalWrite(ac, LOW); digitalWrite(light, LOW); digitalWrite(fan, LOW); digitalWrite(tv, LOW);}void loop() { int i=0; char ch=0; data=""; while(1) { while(mySerial.available()<=0); ch = mySerial.read(); if(ch=='#') break; data+=ch; } Serial.println(data); if(data=="*turn on AC") { digitalWrite(ac,HIGH); Serial.println("ac on"); } else if(data=="*turn off AC") { digitalWrite(ac,LOW); Serial.println("ac off"); } else if(data=="*turn on light") { digitalWrite(light,HIGH); Serial.println("light on"); } else if(data=="*turn off light") { digitalWrite(light,LOW); Serial.println("light off"); } else if(data=="*turn on fan") { digitalWrite(fan,HIGH); Serial.println("fan on"); } else if(data=="*turn off fan") { digitalWrite(fan,LOW); Serial.println("fan off"); } else if(data=="*turn on TV") { digitalWrite(tv,HIGH); Serial.println("tv on"); } else if(data=="*turn on TV") { digitalWrite(tv,LOW); Serial.println("tv off"); } else if(data=="*turn on all") { digitalWrite(ac,HIGH); digitalWrite(light,HIGH); digitalWrite(fan,HIGH); digitalWrite(tv,HIGH); Serial.println("all on"); } else if(data=="*turn off all") { digitalWrite(ac,LOW); digitalWrite(light,LOW); digitalWrite(fan,LOW); digitalWrite(tv,LOW); Serial.println("all off"); } } |
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