My project consist in a digital safe composed by two locks: the one lock is controlled by a numerical keypad, the other one is controlled or by a RFID or by bluetooth. Radio-frequency identification (RFID) is a technology to record the presence of an object using radio signals. This technology is used for automatically identifying a person, a package or an item. To do this, it relies on RFID tags.

Step 1: How to Control Lock With RFID

To control the lock with RFID i used special device called Arduino, an open source microcontroller which permits thanks to special software-code to control that the badge-code is equal to the pre-memorized badge

Step 2: How to Connect RFID to Arduino?

The RFID-module is made up of seven pins. For the correct operation of the RFID, you have to connect the vcc and gnd power pins respectively to the 3.3 volts and arduino gnds. The RST pin you must connect to the fifht analogue pin of arduino,and the SDA, SCK, MOSI and MISO pins you have to connect respectively to the 53,52,51,50 analogue pins.