Thermohygrometer based on Tuya Smart

Thermohygrometer based on Tuya Smart

1.1 Overview of course design background. After entering the 21st century, all walks of life, especially traditional industries, are in urgent need of applying electronic technology and automatic control technology to transform and improve. Many enterprises’ measurement and control methods for temperature and humidity are crude and very backward, and most of them are still When using a wet bulb hygrometer and manually observing and adjusting valves and fans, few people use temperature and humidity sensors. With the development and progress of science and technology, the requirements for temperature and humidity in the industrial and electrical industries have increased, and the application scope of temperature and humidity sensors has become more and more extensive. 1.2 Contents of this course design In this course design, in order to realize the detection and display of temperature and humidity, the hardware circuit with AT89C51 as the core architecture is mainly used, and the DHT11 temperature and humidity sensor collects environmental temperature and humidity information (temperature detection range: 30 °C to +55C. Measurement accuracy: ±2"C.; Humidity detection range: 20%-90%RH. Detection accuracy: ±5%RH). LCD1602 display directly displays temperature and humidity (display mode: temperature: four-digit display ;Humidity: four-digit display); at the same time, C language programming is used to realize the display function of temperature and humidity information. 1.3 The significance of the design of this course In recent years, with the rapid development of science and technology, the field of microcontrollers is constantly moving into every corner of society, and it also drives Traditional control detection is updated with each passing day. When the real-time operation and automatic control of single-chip microcomputer are applied to the system, the single-chip microcomputer is now used as a core component. It is not enough to master the knowledge of single-chip microcomputer. It should also be based on its specific hardware structure and specific requirements. Combine the characteristics of the application object with the software and improve it. "Single-chip Microcomputer Principles and Application Course Design" is the basic subject of electronic majors. It is developed after courses such as "Assembly Language Programming" and "Interface Technology" Practical course. In modern society, more and more places involve temperature and humidity and display them.