Password Based Door Locking (AT89C2051)
2016-08-23
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Password Based Door Locking (AT89C2051) from imranics,,,, at89c2051 microcontroller is used ,,, and code s complied through keil software
assembly
LED1 EQU P3.0
LED2 EQU P3.1
SWITCH EQU P3.2
SDA EQU P3.4 ;SDA=PIN5
SCL EQU P3.3 ;SCL=PIN6
WTCMD EQU 10100000B ;WRITE DATA COMMAND Note 3
RDCMD EQU 10100001B ;READ DATA COMMAND Note 3
ALRM EQU P3.5
OPEN EQU P3.7
CLOSE EQU P1.0
KEYS EQU P1
ROW1 EQU P1.1
ROW2&nbs
c
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