Figure 47. The Demo of Two-tier Identification
Figure 47 shows the demo of two-tier identification, first, input the
password via keypad, and second use tag via RDIF antenna.
Figure 48. The door open signal
Figure 48 shows the door open signal, this LED is on if the door has
been open, the LED was used for simulating the door open signal was issued.
In the real case, it can control an electronic lock.
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