RFID Attendance System
Today Now i am going to write my new project Tutorial,here i am showing u how to make, RFID Atendance Logger.So let's make it.
What we need First:
Components list:
1.Arduino uno R3
2.RFID Reader with Tag
3.RTC Module
4.Micro Sd-card module
516*2 LCD Display
6.Jumper Wire
7.Breadboard
8.Micro Sd-card
And This is our Main Circuit Diagram.
Extra:
1.RFID=Radio-frequency identification
2.RTC=Real time clock
3.LCD=Liquid crystal display
IN this circuit, we have implemented two
different RFID based Attendance system Projects using Arduino- Mirocontroller.
In this system, each student is issued an RFID tag. Controlling unit is in the institute. Whenever the card is placed near the reader, it will take the attendance.
RFID Based Attendance System Circuit Principle:
RFID based
attendance system consists of RFID Reader, RFID Tag, LCD display and
microcontroller unit. RFID can be interfaced to microcontroller through
USART. Data is transferred from RFID cards to reader and from there to
microcontroller.
Radio
frequency technology is used in many applications. RFID tags are of two
types – 1) Passive Tags and 2) Active Tags. Passive tags contain 13
digit number tag inbuilt in it, where as active tag is read/write tag
i.e. one can read from the tag and write to the tag. This project uses
passive tag.
In real
time, one can issue active tags to the students, with their roll numbers
as their tags. RFID reader contains a copper winding in it. This
winding acts as an antenna.
When the
tag is placed near the reader, due to the induced mutual inductance
energy, data is transferred to reader. Reader then transfers data to the
microntroller. Microcontroller checks for the data continuously, if any
data is received, microcontroller compares the data in data base.
If the tag is authenticated, microcontroller takes the attendance.
Simple Circuit Connection:
Arduino-RFID Reader Connection:
VCC>VCC
GND>GND
TX>RX
RX>TX
Arduino-RTC Module Connection:
VCC>VCC
GND>GND
A4>SDA
A5>SCL
Arduino-Micro SD Storage Board Connection:
3.3v>VCC
GND>GND
12>MIOS
11>MOSI
13>SCLK
10>CS
Arduino-LCD Dislpay Connection:
VCC>VDD,A
GND>VSS,K,RW
5,4,3,2>D4,D5,D6,D7
8>RS
9>E
FILE DOWNLOAD
Once the
code is uploaded, the circuit can be given by the USB, and can also be given
through a rechargeable battery unit. Date and time will be seen on the LCD when
the circuit is given. Any RFID card in contact with RFID reader will actually
show 'Welcome' in the LCD. The SD card will record the date and time of the
test.txt file after 1 second. Also, when a card is punched, the card number
will also be recorded.
We can also take data in Excel files if we want to.
Process of transferring data from Microsoft Excel to text files
1) Open new file in Microsoft Excel and click on DATA.
Then select "From text" and test us. Open the file named 'text.txt'.
2) Select 'Delimited':
3) Select 'comma' from delimiters.
4) Click OK.
5) The final output will look like this.
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