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Control a Light Bulb using Android and Arduino | Home Automation

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How to control 220v bulb with Android using Arduino and relay. This is no more a dream to control lights and other electric appliances using your smartphone. Although this is a science project (you can also call it ardunio project or electronic project) you can make for your school project or college project.

char data = 0;                
void setup() 
  pinMode(13, OUTPUT); 
void loop()
  if(Serial.available() > 0) 
    data = Serial.read();     
    if(data == '1')            
      digitalWrite(13, HIGH);  
    else if(data == '0')       
      digitalWrite(13, LOW);

Let’s look at the components you required to build this project yourself:

Arduino Uno R3: http://amzn.to/2srIMT3 | https://goo.gl/MkGoQC
Bluetooth Module: http://amzn.to/2ryb0eA | https://goo.gl/9w8YhV
4 Channel Relay for Arduino: http://amzn.to/2s09f8s | https://goo.gl/Dtd7Xb
LED Bulb: http://amzn.to/2s0lKB9 | https://goo.gl/dyx4ux
Jumper wires: http://amzn.to/2s9wfkc | https://goo.gl/QK5BN4
2 pin flexible wire: http://amzn.to/2rv7Hjx
Arduino Program and APK files: https://goo.gl/kdNCgh (check attachment)

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