Ultrasonic Measurement Alarm System Based on 51 Microcontroller

Ultrasonic measurement alarm system based on the 51 microcontroller with LCD1602 display (Proteus simulation + program + design report + explanation video)

Simulation diagram using Proteus 8.15 (lower versions available)

Compiler: Keil 4 / Keil 5

Programming Language: C

Design Number: P20

Ultrasonic distance measurement alarm design based on the 51 microcontroller

Specific functions

1. The 51 microcontroller drives the ultrasonic module HC-SR04 to obtain the ultrasonic testing distance, with temperature compensation for ultrasonic accuracy;

2. The LCD1602 displays the measured distance and temperature;

3. The upper and lower limit values for distance alarms can be set via buttons;

Button functions include: distance increase button, distance decrease button, distance setting button.

4. If the measured distance exceeds the set alarm limits, the buzzer will sound an alarm.

(Currently fully compatible with the Puzhong 51 experimental board 234; other Puzhong development board models may require code modifications or additional wiring)

Note that the 51 microcontroller chip in the simulation is compatible; AT89C51 and AT89C52 are specific models of the 51 microcontroller, and the core is the same. In the same schematic, whether STC or AT, the pin functions are the same, and the programs are compatible. Chips can be replaced with STC89C52/STC89C51/AT89C52/AT89C51 and other 51 microcontroller chips.

P series microcontroller design download link (copy to browser to open)

https://docs.qq.com/doc/DS2pPenNRaHB6SlR1

The following are the design material display images:

The explanation video includes a simulation run explanation and code explanation.

Open the simulation project, double-click the microcontroller in Proteus, select the hex file path, and then start the simulation.

The LCD1602 displays the measured temperature and distance values. If the measured distance exceeds the alarm value, the buzzer will sound an alarm.

Pressing the set button allows you to set the upper and lower limit values for the ultrasonic distance measurement alarm.

Use Keil4 or Keil5 to compile; the code is commented, and you can understand the code meaning in conjunction with the video.

10,877-word design report, including hardware design, software design, software and hardware block diagrams, debugging, conclusions, etc.

The rapid development of microcontroller technology has achieved widespread application in many fields due to its significant advantages of stability, safety, efficiency, and economy. From air conditioners, VCD players, mobile phones, microwave ovens, automatic washing machines to automotive electronic devices, microcontrollers are omnipresent, profoundly influencing our daily lives. Its compact size stems from its highly integrated characteristics, with an internal structure serving as a simplified version of a traditional computer system. By adding some peripheral circuits, a fully functional small system can be constructed, showcasing powerful scalability. Microcontrollers also possess data processing capabilities similar to conventional computers and can achieve efficient data processing through advanced algorithms. In the industrial sector, microcontrollers have significantly enhanced the intelligence level and data processing capabilities of equipment, optimized processing efficiency, and do not occupy excessive space.

At the same time, with the continuous progress of society, the importance of ultrasonic distance measurement systems is becoming increasingly prominent, and their application range is constantly expanding. As a non-contact detection technology, ultrasonic distance measurement is not affected by light and the color of the measured object, and it performs well in harsh environments (such as dusty environments), making it extremely versatile. In topographic mapping, construction (including housing, bridge, road construction, and mining, oil well excavation), reversing radar, construction sites, and some industrial sites (such as liquid level measurement, well depth detection, pipeline length measurement, etc.), ultrasonic distance measurement is widely used due to its speed, convenience, simple calculations, ease of real-time control, and the ability to meet industrial precision requirements.

The design materials include simulation, program code, explanation video, functional requirements, design report, software and hardware design block diagrams, etc.

0. Common usage issues and solutions—mandatory reading!!!!

1. Program

2. Proteus simulation

3. Functional requirements

4. Software and hardware flowcharts

5. Project proposal report

6. Design report

7. Burning tools

8. Explanation video

9. Physical images

Altium Designer installation and cracking

KEIL + Proteus microcontroller simulation design tutorial

KEIL installation and cracking

Proteus component search

Proteus installation

Proteus simple usage tutorial

Microcontroller learning materials

Related datasheets

Defense skills

Common descriptions in design reports

Double-click the mouse to open and find the Jiasheng microcontroller 51 STM32 microcontroller course graduation design.url

Material download link (clickable):

https://docs.qq.com/doc/DS2pPenNRaHB6SlR1

More resources click the link below:

https://docs.qq.com/sheet/DS0xIa0llTmtNakRW