Part A
Title of micro project:–Prepare report on small circuit for door open and close applications using different actuator with PLC
Brief introduction:
the automatic door opening systems are used in commercial buildings, shopping malls, theatres, etc. These systems are used to open the door when a person comes near to the entrance of the door and closes it after he moves away from the door or after entering into the door. There are various kinds of sensors are available in the market to make such types of systems such as Radar sensors, PIR sensors, Infrared sensors, and Laser sensors, etc. This project uses a PIR sensor to open or close the door automatically which senses the infrared energy produced by the human body. When someone approaches the door, the IR energy sensed by the PIR sensor changes and activates the sensor to open and close the door automatically. Further, the signal sent to the microcontroller to control the door.
Aim Of Micro project
To know the element of door close and opening circuit
To know the design of circuit To know working of different parts
in the Automatic Door Opening System, the main component or hardware is the sensor which detects the persons (well, the motion of the person in our case). For this purpose, we will be using the PIR Motion Detector Sensor.We have already seen in the Arduino PIR Sensor Tutorial about how a PIR Sensor Works and how to interface a PIR Sensor to an Arduino.We have already seen in the Arduino PIR Sensor Tutorial about how a PIR Sensor Works and how to interface a PIR Sensor to an Arduino. Before continuing with this project, I suggest you to take a look at the Arduino PIR Sensor Tutorial. For the purpose of demonstration, I have used a CD Tray to replicate the door. Whenever the PIR Sensor detects a motion, the CD Tray opens and then closes after some time. In order to control the SV DC motor in the CD Tray, I’ve used the L298N Motor Driver Module. I’ve already done a tutorial on controlling a DC Motor using Arduino and L298N Motor Driver Module.
Circuit Diagram of Automatic Door Opener System
Components Required for Automatic Door Opener System
PIR Sensor
L298N Motor Driver Module [Buy Here]
CD Tray with 5V Motor
Connecting Wires Power Supply
Component Description
Arduino UNO
In this project, Arduino UNO acts as the main controlling part. It reads the data from the PIR Sensor and activates the L298N Motor Driver based on the data from the PIR Sensor.
PIR Sensor
Detecting human motion is done with the help of PIR Sensor.
L298N Motor Driver Module
Motor Driver is an important part of the project as it is responsible for driving the motor of the door (CD Tray Motor in this case). In this project, we have used the very common and very popular L298N Motor Driver Module..
• First, the Data OUT of the PIR Sensor is connected to Digital Pin 8 of Arduino. The other two pins of PIR Sensor i.e. Vs and GND are connected to +5V and GND respectively.
âš« Coming to the Motor Driver, we have used the second channel of the L298N Motor Driver Module. Hence, the IN3 and IN4 of the L298N Motor Driver are connected to Digital Pins 2 and 3 of Arduino.
âš« The Enable Pin of the Second Motor on the L298N Module us connected to +5V. Usually, all the L298N Modules consists of a jumper to directly connected the Enable pins to +5V. You can use this option.
• Since the motor used in the project is a 5V Motor, I’ve connected a 5V Supply to the Motor Driver Module.
âš« Finally, the Motor of the CD Tray is connected to the OUT3 and OUT4 of L298N Motor
Driver Module.
Code
The code for the project is given below. It can be used with any Arduino Board (Arduino UNO, Arduino Nano or Arduino Meg
The working of the Automatic Door Opener System using Arduino and PIR Sensor is very simple. This project can be considered as an extension of Arduino PIR Sensor Tutorial and Arduino L298N DC Motor Control Tutorial. When the PIR Sensor detects any motion of a person, its Data OUT Pin will become HIGH. As this pin is connected to the Arduino, it will detect this HIGH Signal and understands that there is person approaching the door Arduino then immediately activates the L298N Motor Driver module to open the door. After some time (about 2 to 5 seconds in this project), the Arduino will once again activate the Motor Drive to close the door
Applications
• Arduino based Automatic Door Opener System is a very useful project as it enables you to understand the concept of such automatic door opener systems and how they
work.
These systems are already being used in many places like malls, theatres and hospitals.
You can implement this Arduino based project at you home in Garage Door Openers, toilet cover openers, Office door openers, etc.
Aim of micro-project
To know the element of door close and opening circuit
To know the design of circuit
âš« To know working of different parts
Courses outcome integrated
• Actual procedure followed
. First we select topics
. Then search information about element of door close and opening circuit
. Then collect all the information related to element of door close and opening circuit from internet,reference book magazine
. Then discuss with our subject teacher
Then prepare report on it
Outputs of the micro-projects
âš« To understand the element of door close and opening circuit
To understand the design of circuit
Skills developed / learning out of this micro-project
in this microject we learn
âš« to study different sensor,circuit and actuator use in circuit
âš«
To understand the element of door close and opening circuit
To understand the design of circuit
