Security may be a prime concern in our day-today life. everybody desires to be the maximum amount secure as attainable. associate access management for doors forms an important link in an exceedingly security chain. The microcontroller based mostly digital lock for Doors is associate access system that enables solely licensed persons to access a restricted space.
An electronic lock or digital lock may be a device that has associate electronic management assembly connected thereto. they're given associate access system. this method permits the user to unlock the device with a arcanum. The arcanum is entered by creating use of a input device. The user may set his arcanum to make sure higher protection. the most important elements embrace a input device, digital display and also the controller PIC16F877A. this text describes the creating of associate electronic code lock victimization the 16F877A microcontroller.
The system is absolutely controlled by the eight bit microcontroller 16F877A that includes a 8Kbytes of store for the program memory. The arcanum is keep within the ROM in order that we will modification it at any time. The system includes a input device by that the arcanum may be entered through it. once the entered arcanum equals with the arcanum keep within the memory then the relay gets on and then that the door is opened.
