Design and Implementation of Infrared Remote Control Code Lock

A kind of infrared remote electronic code lock based on single-chip microcomputer is researched and designed,whose theory and method of the software and hardware are introduced.The system contains code modification,button cue,wrong code alarm,local unlock and remote control without expanding any peripheral chips.The system has characteristic of automatic reset when there′s no button pressed after another in three seconds.The system is safe and reliable,easy to use,worthy of widely use,and has low cost.