Design of elevator control system based on 51 microcontroller

1. System Overview

The modules used in the system include AT89C51 microcontroller + LCD1602 display screen + ADC0832 + buttons + small lights.

The intelligent street light control system designed this time uses the AT89C51 microcontroller as the control core, and uses the LCD1602 display screen to display the digital voltage signal of the light intensity collected by the ADC. The light intensity threshold is set in the system program. It is in automatic mode by default. At this time, adjust The potentiometer can adjust the light intensity. Pressing the automatic button will switch to manual mode. At this time, pressing the manual on and manual off buttons can control the light on and off.

2. Simulation Overview

1. Use LCD1602 to display the light intensity voltage signal value.

2. There are up and down buttons for both the inside and outside of the elevator. When pressed, the up and down procedures will begin. The indicator light on the left will be highlighted according to the up and down movements of the elevator. The status light will light up directly after reaching the designated floor.

3. When the up/down button is pressed, the motor simulates the operation of the elevator. The up-stairs motor rotates forward and the down-stairs motor reverses.

4. Use buttons to alarm inside and outside the elevator.

3. Programming

Use Keil  51 for programming. When you open Proteus , the program is burned by default. If it is not burned, click on the AT89C51 microcontroller and import the program to run the system (the program file is a file with the suffix hex).