We are running a survey to help us improve the experience for all of our members. If you see the survey appear, please take the time to tell us about your experience if you can.
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.
Actually, it's "sarcasm"
" does have a certain appropriateness to it...
chasm/casm
Maybe it was a parapraxes?
No, just me being stoopid - Back I go to skool.
An acquaintance of mine designed a code lock for a company as a consultant. When he presented his bill he was told "we are just starting up, short of cash and can not afford to pay you, will you accept $5 per lock we make instead?". well, he figured, if I just take my code back I will get nothing. The rest of the story is the lock was a succes and sold more than 50,000 units.
Erik