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
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
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
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
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
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
1. Operating Environment Simulation Software: Proteus 8.17 SP2 Programming Software: KEIL C51 V961(All software and installation tutorials can be found in the Baidu Cloud link at the end of this article) 2. Project Overview This system is based on the AT89C51 microcontroller as the core control unit, meticulously designed as a traffic light simulation project. … Read more
Introduction: 1、Function: Capable of performing addition, subtraction, multiplication, and division operations with up to four digits, retaining four decimal places for division; 4*4 matrix key input, LED LCD display for showing data; each key press triggers a buzzer response, and a marquee light is included, allowing the buzzer and LED light to be turned on … Read more
The AT89C51 is one of the most widely used 8051 microcontrollers, and importantly, it has the feature of being reprogrammable (FLASH). Generally, it can be rewritten 1000 times, providing a low-cost platform for beginners to experiment. To meet the hands-on needs of microcontroller enthusiasts, I spent half a month designing and successfully creating a simple … Read more
Click the above “Chuangxue Electronics” to follow us with one click and easily learn electronic knowledge. Chuangxue Electronics Subscription Account Daily updates on electronic industry technical articles and the latest microcontroller news, learn easily anytime, anywhere. In microcontroller programming, setting a good clock interrupt can enable a single CPU to perform the tasks of two … Read more