Skip to main content

36. RFID Door Security System With Room Lighting

Hey friends,
Today I am going to teach you about my RFID door security system with room lighting.
In this project, I have used the laser transmitter module and photoresistor module. The MFRC522 reader module will be used to read the data stored in the RFID key tag and card tag. In this case, the card tag will be used to switch on the laser transmitter module and the key tag will be used to switch it off. 

Initially, I used the MC-38 Wired Magnetic Door/ Window sensor to detect whether the door is open or closed; unfortunately, the contacts within reed switch  in the sensor got burnt out because of some faulty coding. Afterwards, I used the Mini Reed module (KY-021) and it did not work as well. I used the Hall Magnetic sensor module (KY-003) but it required a strong magnet. Finally, I decided to use the Laser transmitter module (KY-008) and the photoresistor module (KY-018). This concept was used in one of my previous projects (Safety box using Arduino). I taped a cardboard box to my door to act as an interrupter.
Read the 'Coding' section of this page to learn about how this project works.

Supplies

  • Arduino Uno / Nano
  • USB Type A/ B cable ( for Arduino Uno) or USB Type A to mini B cable (for Arduino Nano)
  • Solderless Breadboard - Mini
  • MFRC522 RFID reader module
  • RFID tags - Card and Key tag
  • Laser transmitter module (KY-008)
  • Photoresistor module (KY-018)
  • Active Buzzer Module (KY - 012)
  • Rocker switch
  • DC power adapter - 12V---1A
  • White LED strip lights - 12V
  • Relay Module - 5V 1 channel
  • Power Bank - 10000 mAh
  • Male-to-Male Jumper wires (x17) - 10cm
  • Female-to-Male Jumper wires (x3) - 20cm
  • Female-to-Male Jumper wires (x1) - 70 cm
  • 3 pin Female-to-Female Jumper wires (x4) - 70cm

Connections

Laser transmitter module (KY-008)

  • S - D5
  • (+) - 5V
  • (-) - Ground (GND)

Photoresistor module (KY-018)

  • S - A0
  • (+) - 5V
  • (-) - Ground (GND)

MFRC522 RFID reader module

  • RST/ RESET - D9
  • SDA/ SS - D10
  • MOSI - D11
  • MISO - D12
  • SCK - D13
  • GND - Ground
  • 3.3 V - 3.3 V

Active Buzzer Module (KY-012)

  • S - D6
  • ( + ) - 5V
  • ( - ) - Ground (GND)

Relay module

  • S - D7
  • (+) - 5V
  • (-) - Ground (GND)

Coding

I have given you a glimpse of this project works in the first section. Now I will explain you about the project and coding. You will need the built-in library, 'SPI' and 'MFRC522' library by GitHub community. Before you start, you will need to scan your RFID tags. To do this, go to Examples, open this library's folder and open the sketch with the name 'DumpInfo'. Upload this sketch to your Arduino board and open the 'Serial Monitor'. Place your key tag in front of the MFRC522 RFID reader module and wait for a few seconds. You will see the data (which is stored in the tag) print on the Serial Monitor along with the UID (Unique Identification) tag. Write down the UID tag.
Before continuing this project, connect the photoresistor and laser transmitter modules to your Arduino board and measure the analog output produced by the photoresistor module when the laser is on/ off while the door is open/closed. 
Create global variables for each components. For the MFRC522 RFID reader module, define the RST pin and create MFRC522 instance.

#define RST_PIN 9
MFRC522 mfrc522(SS_PIN, RST_PIN);

Within void setup( ), call pinmode( ) to configure each component pin as INPUT or OUTPUT. Initiate SPI bus and MFRC522. 
Within void loop( ), program your microcontroller such that the laser transmitter module is turned on when the card tag is placed in front of the MFRC522 RFID reader, and is switched off when the key tag is placed. 
I have used the tone( ) function to make the buzzer sound different when the key tag or card tag is placed in front of the MFRC522 RFID reader. When the key tag is placed in front of the MFRC522 RFID reader, the buzzer must emit sound at 100Hz for 500 milliseconds, and when the card tag is placed, the buzzer must emit sound at 500 Hz for 700 milliseconds.
When the key tag is placed and door is opened, the photoresistor detect change in light levels and the relay module is switched on. When the card tag is placed and the door is opened, the relay module is switched off and the pin of the active buzzer module is set HIGH.
Please watch the YouTube video in the last section of this page, to see how this project works.
If you have doubts with the coding, please feel free to comment below or send an email to arduinoprojectsbyr@gmail.com.
Any of you, who have subscribed to my YouTube channel, liked my YouTube video and followed my blog can contact me via my email address if you want the complete coding.

Final Look

If anyone has questions, or suggestions, about this project, please feel free to comment below or send an email to arduinoprojectsbyr@gmail.com.

Comments

Post a Comment

Popular posts from this blog

51. Buzz wire game using Arduino

Hello everyone! This is my first Arduino project in 2020 and it is going to be a fun and simple project. You would have heard of the Buzz Wire, a steady hand game, and today you will be learning to make one using Arduino. Hardware components used in this project Arduino Nano USB Type A to mini B cable (for Arduino Nano) Solderless Breadboard - Mini and Full-size LEDs (x2) - Green and Red Resistors (x2) - 220 Ω  Active Buzzer module (KY-012) LCD display module with I2C interface - 16x2 Male-to-Male Jumper wires (x4) - 10cm Female-to-Male Jumper wires (x5) - 20 cm Jumpers (x5) - to reduce the usage of wires Copper wire  Tape (or any form of insulation)  Setup Your hardware setup must look somewhat similar to the ones in the images above. The beginning and end of the copper wire maze must be taped to prevent conductivity between the wire loop and maze. Connections LCD display module with I2C interface GND - Ground VCC - 5V SDA -...
Post a Comment
Read more

71. Buzz Wire Game ( Version 2.0 ) using Arduino

Hey Everyone! I hope that everyone's safe during this pandemic. Today I am going to explain you about the second version of my Buzz wire game. People who are bored of staying indoors can find this game pretty interesting and fun to play.  If you are a beginner, you can start off with my first version of this project :  51. Buzz wire game using Arduino   Hardware components used in this project Arduino Uno Solderless Breadboard (x2) - Full/ Full+ LCD display module with I2C module - 16x2 Potentiometer - B20K Push-buttons (x3) Resistor - 220 Ω Active Buzzer module (KY-012) LED - Red Copper Wire - 19/ 20 gauge thick Male-to-Male Jumper wires - 10cm and 20cm Wire - Long enough to connect the loop of copper wire to ground Other tools required for this project Cutting pliers - To cut the right amount of copper wire Round-nose pliers - To bend the copper wire and make a maze and loop Hardware setup Connections Wire Maze - D2 Wire loop - Ground (GND) B20K Potentiometer S - A0 (+)...
1 comment
Read more

86. RFID Health tag (Arduino and Python)

 Hey everyone, Sorry I have not uploaded in a while. Today, I will be sharing an interesting project with all of you. This RFID Health tag project is useful when it comes to keeping track of vaccinated individuals, their biodata and their health conditions and medications. For this project, you will be needing Arduino and Python. Read on further to see how I did this project. Hardware components used in this project Arduino Uno Solderless Breadboard - Half+ MRFC522 RFID reader RFID key tags (x5) Push-buttons (x2) Male-to-Male Jumper wires (x12) USB Type A/ B cable (for Arduino Uno) Software required Arduino IDE - latest version recommended Python 3.8 Schematic MFRC522 RFID reader SDA/ SS - D10 SCK - D13 MOSI - D11 MISO - D12 IRQ - Not connected GND - Ground RST/ RESET - D9 3.3V - 3.3V Push-buttons Submit button - D4 Retrieve button - D5 Coding Arduino For this project, you will be using the following libraries: MFRC522 by miguelbalboa -  https://github.com/miguelbalboa/rfid SP...
Post a Comment
Read more