Description: Circuit by the AT89C52, 4 digital tube, constitute two keys. Used to achieve two key password input, and show up in the digital control input figure. Enter the correct figure, digital display OPEN, digital tube, when all the wrong show 0. Consecutive 3 times error, digital tube at the same time the police put out three seconds, three seconds after the return to the initial state.
To Search:
- [proc] - Electronic code lock, 4X4 keyboard, 0~9
File list (Check if you may need any files):
完整密码锁
..........\1
..........\1.hex
..........\1.lnp
..........\1.M51
..........\1.Opt
..........\1.plg
..........\1.Uv2
..........\1_Opt.Bak
..........\1_Uv2.Bak
..........\Last Loaded 密码锁.DBK
..........\STARTUP.A51
..........\STARTUP.LST
..........\STARTUP.OBJ
..........\Text1.c
..........\Text1.LST
..........\Text1.OBJ
..........\密码锁.DSN
..........\密码锁.PWI
..........\文献
..........\....\基于CPLD的电子密码锁设计.pdf
..........\....\用单片机做电子密码锁.pdf
..........\....\电子密码锁的系统原理、设计程序及流程图.pdf
..........\....\红外线遥控12位电子密码锁的设计.pdf
..........\陈杰密码锁设计报告.doc
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