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Advanced Attendance Systems are now not used just in companies but also in school and colleges for student attendance. In this project we have used low cost RFID technology to take students attendance.
In this project we have used Arduino Uno to do the processing. A 125Khz TTL RFID reader is used. All students will be provided with a RFID tag so when they enter the classroom they have to swap their card on the reader. The reader reads the tag number and then sends it serially at 9600 baudrate to the Arduino. Arduino then compares the read tag with the ones stored in its memory and if the tag matches it displays the Students name and roll number and also gives a valid beep. If the tag number does not match a long beep is sounded and Invalid Tag is displayed.
We have used a 16x2 Blue LCD over here to display the students name and roll number. We had got bored of using the commonly 16x2 Green LCD so we thought of using LCD with blue backlight and white font.
A 5 volt PCB mounting buzzer is also used to give Audio indication if the Tag is valid or not. Arduino cannot provide the necessary current required for the buzzer so I have used a BC547 transistor as a switch toprovide the necessary current required for the buzzer.
In this project we have used Arduino Uno to do the processing. A 125Khz TTL RFID reader is used. All students will be provided with a RFID tag so when they enter the classroom they have to swap their card on the reader. The reader reads the tag number and then sends it serially at 9600 baudrate to the Arduino. Arduino then compares the read tag with the ones stored in its memory and if the tag matches it displays the Students name and roll number and also gives a valid beep. If the tag number does not match a long beep is sounded and Invalid Tag is displayed.
We have used a 16x2 Blue LCD over here to display the students name and roll number. We had got bored of using the commonly 16x2 Green LCD so we thought of using LCD with blue backlight and white font.
A 5 volt PCB mounting buzzer is also used to give Audio indication if the Tag is valid or not. Arduino cannot provide the necessary current required for the buzzer so I have used a BC547 transistor as a switch toprovide the necessary current required for the buzzer.
Components Used
If you have any queries regarding this project feel free to post them in the comments below. All components required for this project can be bought online from DNA Technology | Online Electronic Component store.
