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I want a digital lock based on the 8051 variant AT89C2051 with proteus simulation.
The basic user lock is of 5 Digits and Master Lock is of 10 digits. The input is taken from a 4x3 Keypad and the user input is shown on a 2x16 LCD. Pin 15 (P1.3)is assigned as output for activating and deactivating the lock. An LED is connected to that pin for testing.
The # key acts as "ENTER" key and * as "BACKSPACE" key. The default code for activating the lock is 56712. To change it first enter 54321 and then enter the master key code of 8776934265. Then it will ask you to enter the new 5 digit key unlock code which will be stored for future.
The lock has to be opened within 3 tries else it gets blocked.
Has anyone done it yet? Yes? Let me know where I can download it from(rapidshare is esiest).
ENJOY.
"default lock codes - something no real company would dream of mention"
Not just the defaults, but also the Master code to change it!!
Might as well not bother with any lock at all for that level of security!!
:-0
While this might be an interesting exercise purely in 8051 development, it is clearly a very poor example of the issues that need to be considered in real security systems!!
"Hey, that's the same code I use on my luggage !?"