DEPARTMENT OF
COMPUTER SCIENCE & ENGINEERING
Experiment 7
Student Name: Sagar Rawat UID: 22BCS10832
Branch: CSE Section/Group: 22BCS_639_A
Semester: 5th Date of Performance: 14 -10 -24
Subject Name: IOT LAB Subject Code: 22CSP-329
Aim:
To create a smart door lock system using RFID for secure access control.
Objective:
Interface multiple actuators with Arduino Uno.
Control actuators (LED, motor, and buzzer) based on conditions.
Hardware Required:
1. Arduino Uno 5. Resistor (220Ω for LED)
2. LED 6. Transistor & Diode (for motor control)
3. Motor (DC Motor) 7. Jumper Wires
4. Buzzer
CODE
// Pin definitions
const int ledPin = 2;
const int motorPin = 3;
const int buzzerPin = 4;
void setup() {
pinMode(ledPin, OUTPUT);
pinMode(motorPin, OUTPUT);
pinMode(buzzerPin, OUTPUT);
}
void loop() {
// Turn on LED, Motor, and Buzzer
digitalWrite(ledPin, HIGH);
digitalWrite(motorPin, HIGH);
digitalWrite(buzzerPin, HIGH);
DEPARTMENT OF
COMPUTER SCIENCE & ENGINEERING
delay(2000); // Wait for 2 seconds
// Turn off LED, Motor, and Buzzer
digitalWrite(ledPin, LOW);
digitalWrite(motorPin, LOW);
digitalWrite(buzzerPin, LOW);
delay(2000); // Wait for 2 seconds
}
Result:
Learning Outcomes:
Understand how to control basic actuators with Arduino.
Gain skills in controlling a motor using Arduino pins.
Learn to use digital I/O for controlling buzzers and LEDs.
