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RFID Reader to record students attendance and post the data to an online mysql server

This project received 5 bids from talented freelancers with an average bid price of $170 USD.

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Project Budget
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Total Bids
5
Project Description

1) Advice on which RFID reader/ card/ sdk can be used to make a basic students attendance recording function from a RFID reader. JAVA/PHP/C development based on it. The card need to store a customized student number.
2) The system is very simple: Just display the card identification code and the time each time a card is 'tapped' on the reader. And the data is uploaded to an online mysql database every 15min.

The following database structure is an example:
ID(int auto_increment) student_no(int) time(datetime)
3) Also advice on how many traffic it can stand based on this system.

As you can see, this is only the phase 1 of the project. If it is done great more budget will be allowed and go on to work for the latter phase.
Interested parties can email me on basically how you achieve the above requirement and what hardware and language you are going to use.

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