#SMART BULB USING ELECTRONIC COMPONENTS

TITLE:-SMART BULB USING ELECTRONIC                                           COMPONENTS

❖Components:

• Arduino Uno:

     

  The Arduino Uno is a popular open-source microcontroller board based on the ATmega328P chip. It is widely used for electronics projects, prototyping, and learning programming and hardware development.

• HC-05 Bluetooth Module:

The HC-05 is a Bluetooth module that enables wireless communication between microcontrollers (like Arduino) and other Bluetooth-enabled devices (such as smartphones or computers).

• Breadboard:

A breadboard is a solderless prototyping platform used for building temporary circuits for testing or experimentation. It's characterized by its rows of interconnected holes (called "tie points") that allow you to easily connect electronic components without soldering.

• LEDs:

                                   

         An LED bulb (Light Emitting Diode bulb) is an energy-efficient lighting device that uses LED technology to produce light. It consumes less power, has a long lifespan, and provides brighter illumination compared to traditional incandescent or CFL bulbs.

• Jumper Wires:

• Jumper wires are small, flexible wires used to connect components on a breadboard, Arduino, or other electronic circuits without soldering. They help in prototyping and testing electronic projects.

**MIT App Inventor**

       MIT App Inventor is a free, cloud-based platform that allows users to create             Android applications using a drag-and-drop visual programming interface. It was developed by MIT (Massachusetts Institute of Technology) to make app development accessible to beginners, students, and educators.

 This Project implemented in the MIT APP INVENTOR.

❖Working Principle:

      The Smart Bulb system operates by utilizing Bluetooth communication to wirelessly control a bulb using an Arduino-based circuit. The HC-05 Bluetooth module receives commands from a smartphone, which are processed by the Arduino Uno. Based on the received instructions, the Arduino switches the bulb ON or OFF by controlling a relay module or a transistor acting as a switch. This allows remote operation of the bulb without physical interaction, making it a smart lighting solution.

❖Program:

const int relay1 = 7;



void setup() {
  pinMode(relay1, OUTPUT);

 
  digitalWrite(relay1, HIGH);


  Serial.begin(9600); 
}

void loop() {
  if (Serial.available()) {
    char command = Serial.read();
   
    switch(command) {
      case 'o':
        digitalWrite(relay1, LOW);

        break;
      case 'a':
        digitalWrite(relay1, HIGH);

        break;
     
    }
  }
}

**project setup **

**Out put **