This presentation summarizes a student project to build a wireless doorbell using an Arduino Uno board. It introduces the presenters and acknowledges the support of faculty. It then outlines the components, circuit diagram, coding, working mechanism, applications and concludes by noting the project demonstrates wireless communication between an RF transmitter and receiver to replicate the function of a traditional wired doorbell.

1. SEMINAR PRESENTATION
ON MAJOR PROJECT
TOPIC:BUILD A WIRELESS
DOORBELL USING THE
ARDUINO UNO BOARD

2. PRESENTED BY-
• AVIK KALSA
• SAKIR HOSSEIN SHEIKH
• TANIMA HALDER
• AKASH MAHATO
• AKASH NASKAR
•Sem:DEE, 6th

3. ACKNOWLEDGEMENT
• We would like to express our special thanks to our mentor Mr.Kalyan
Palit sir and our Respected H.O.D Mr.Debabrata Pradhan sir for their
time and efforts they provided throughout the course.Your useful
advice and suggestions were really helpful to us during the project’s
completion. In this aspect, I am eternally grateful to you. Also we are
grateful to our principal sir for giving the opportunity to us.
• I would like to acknowledge that this project was completed entirely by
us and not by someone.

4. CONTENT
• Introduction
• Principle Of the project
• Circuit Diagram
• COMPONENTS
• Cost of components
• Working of project
• Coding
• Application
• Conclusion

5. INTRODUCTION
The doorbell button contains a built-in
radio transmitter powered by a
battery. When the button is pushed,
the transmitter sends a radio signal to
the receiver unit, which is plugged
into a wall outlet inside the building

6. PRINCIPLE OF THE PROJECT
• The project uses simple hardware to build a wireless doorbell using the Arduino
UNO board.
• The project demonstrates the RF module's implementation for wireless
communication and
• the UNO Arduino board to analyze the data.

7. CIRCUIT DIAGRAM

8. ARDUINO UNO SPECIFICATION

9. COMPONENTS
Transmitter
• 434 MHz RF Transmitter Module
• HT – 12E Encoder IC
• 750 KΩ Resistor
• Push Button
• Power Supply
• Connecting Wires
• Prototyping Board (Breadboard)
Receiver
• Arduino UNO
• 434 MHz RF Receiver Module
• HT – 12D Decoder IC
• 33 KΩ Resistor
• Small Buzzer
• Power Supply
• Connecting Wires
• Prototyping Board (Breadboard

10. COST OF COMPONENT
• • 434 MHz RF Transmitter Module 100
• • HT – 12E Encoder IC 55
• • 750 KΩ Resistor 0.25
• • Push Button 0.25
• • Power Supply (9 v battery) 17
• • Connecting Wires 10
• • Prototyping Board (Breadboard) 65• Arduino UNO 650
• • 434 MHz RF Receiver Module 50
• • HT – 12D Decoder IC 75
• • 33 KΩ Resistor 0.25
• • Small Buzzer 10
• • Power Supply (9 v battery) 17
• • Connecting Wires 10
• • Prototyping Board (Breadboard) 65

11. WORKING OF PROJECT
• In our Receiver code, we wrote a command-
digitalRead(5), this command makes the
Arduino, to keep on reading this pin. When
this pin gets HIGH, Arduino transmits data
through the transmitter, and these signals
are received by the receiver.

12. CODING
int buz=11;
int sen=2;
void setup()
{
pinMode(buz,OUTPUT);
pinMode(sen,INPUT);
digitalWrite(buz,LOW);
digitalWrite(sen,HIGH);
}
void loop()
{
while(digitalRead(sen)==HIGH);
digitalWrite(buz,HIGH);
while(digitalRead(sen)==LOW);
digitalWrite(buz,LOW);
}

13. APPLICATION
• The Wireless Doorbell implemented in this project is just a Demonstration of the
idea. But
• the idea can be extended to actual, Real time wireless doorbell system.
• • Since the mode of communication is RF, the range is considerably Large that
other wireless
• technologies.
• • The project is suitable for homes, shops, garages, hospitals, offices Etc.

14. • In conclusion, the wireless doorbell project offers a convenient and
versatile Alternative to
• traditional wired doorbells. It allows for flexible placement of the Doorbell
unit and receiver,
• simplifying installation and customization. By Following the outlined
steps, one can
• successfully build a functional wireless Doorbell system. Further
enhancements, such as
• incorporating additional Features like volume control or multiple
receivers, can be explored to
• suit Specific requirements.
CONCLUSION

15. •Thank you