AT89C51

Multi-Functional Data Acquisition and Display System Simulation with AT89C51 in Proteus

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Multi-Functional Data Acquisition and Display System Simulation with AT89C51 in Proteus

System Overview This system uses the AT89C51 microcontroller as the core controller, integrating the ADC0831 analog-to-digital converter, DAC0808 digital-to-analog converter, DS1302 real-time clock, FM24C64F EEPROM memory, and LGM12641BS1R LCD display to achieve a complete data acquisition, conversion, storage, and display system. ADC0831 Analog-to-Digital Converter (ADC) ADC0831 is an 8-bit resolution, serial output successive approximation analog-to-digital … Read more

Design and Implementation of a Fully Automatic Washing Machine Control Simulation System Based on the 51 Microcontroller

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Design and Implementation of a Fully Automatic Washing Machine Control Simulation System Based on the 51 Microcontroller

Abstract This article provides a detailed introduction to a design scheme for a fully automatic washing machine control simulation system based on the AT89C51 microcontroller. The system implements the core functions of the washing machine through hardware circuit design and software programming, including water level detection, motor control, and washing process management modules. The article … Read more

DIY Simple Programmer for 89C51 Microcontroller

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DIY Simple Programmer for 89C51 Microcontroller

Last time I needed to use the 89C51 microcontroller, the K1200 programmer had some issues. I wasn’t sure if the problem was with the programmer or the microcontroller, so I decided to make a simple 89C51 programmer myself, mainly to save money and use materials I had on hand. The circuit diagram was referenced from … Read more

AT89C51 Microcontroller Pin Description and Diagram

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AT89C51 Microcontroller Pin Description and Diagram

AT89C51 is a low-voltage, high-performance CMOS 8-bit microprocessor with 4K bytes of flash programmable and erasable read-only memory, commonly known as a microcontroller. This device is manufactured using ATMEL’s high-density non-volatile memory technology and is compatible with the industrial standard MCS-51 instruction set and output pins. By combining a multifunctional 8-bit CPU and flash memory … Read more

Signal Generator Based on 51 Microcontroller

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Signal Generator Based on 51 Microcontroller

Long press the QR code below to enter the public account Abstract The signal generator is a commonly used signal source, widely applied in electronic circuits, automatic control systems, and teaching experiments.This design uses the AT89C51 microcontroller as the control core, with external digital/analog conversion circuits (DAC0832), operational amplifier circuits (LM324), buttons, and a 1602 … Read more

AT89C51-Proteus Simulation of an Intelligent Flower Pot

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AT89C51-Proteus Simulation of an Intelligent Flower Pot

1. System Introduction: The intelligent flower pot monitors soil moisture using a humidity sensor. It uses the TLC2543 (12-bit ADC) for analog-to-digital conversion. The AT89C51 serves as the main controller. The LCD1602 displays the current moisture level and the set value. It automatically waters and alarms when the moisture level falls below the set value. … Read more

Gas Leakage Alarm System Simulation Using AT89C51 in Proteus

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Gas Leakage Alarm System Simulation Using AT89C51 in Proteus

System Overview This gas leakage alarm system uses the AT89C51 microcontroller as the controller, the MQ-2 gas sensor as the detection element, and the LM016L LCD display as the output device, along with a buzzer and LED alarm light. When a gas leak is detected, the system displays a warning message on the LCD while … Read more

AT89C51-Proteus Simulation Infrared Distance Measuring System

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AT89C51-Proteus Simulation Infrared Distance Measuring System

System Overview This system constructs an infrared distance measuring system using the GP2D12 infrared distance sensor, AT89C51 microcontroller, ADC0832 analog-to-digital converter, and LM016L LCD display. The system measures distance using the GP2D12, converts the analog signal to a digital signal, and displays it on the LCD. Hardware Components 1. GP2D12 Infrared Distance Sensor The GP2D12 … Read more

Traffic Light Control System Based on Microcontroller Graduation Project Documentation

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Traffic Light Control System Based on Microcontroller Graduation Project Documentation

Abstract At intersections, vehicles shuttle, pedestrians bustle, with orderly lanes for vehicles and sidewalks for pedestrians. What ensures this orderly flow? It is the automatic control system of traffic lights. There are many control methods for traffic lights. This design is mainly divided into five major modules: input control circuit, clock control circuit, internal and … Read more

Speed Measurement System Based on AT89C51 and Proteus Simulation

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Speed Measurement System Based on AT89C51 and Proteus Simulation

System Overview This design implements a simple speed measurement system using the AT89C51 microcontroller, which detects the speed of rotating objects through a Hall sensor and displays it in real-time on an LCD1602. With appropriate modifications, it can serve as a bicycle odometer, car engine speedometer, or vehicle mileage meter. The system includes the following … Read more