Along with the rapid development of technology, to help human needs are increasingly being innovated. In particular, in tool design. The door is the most important part in a room. Especially in the office space. Companies or agencies have important archives and documents that must be secured, so it is necessary to lock the door with a double system security so that it doesn't happen, data theft, information leakage, people enter carelessly and rooms are broken. So in this implementation the researchers designed a door lock device using Radio Frequency Identification and Arduino as a substitute for conventional keys. This system reads RFID Reader cards tag using the Arduino Mega 2560 module for input and output and uses a keypad with a dual system.
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