This script designs a door access security system that prompts the user to enter a passcode, and access is only granted if the passcode is correct.

By using the EDSIM51 simulator to code an 8051 microcontroller, the user is asked to enter a passcode, it then checks to see if the passcode entered is the same as the passcode previously saved to meemory, and either grants or denies access.

The microcontroller is coded to produce LED animations, and to show each message via the LCD and UART.