基于AT89C51的数字式温湿度仪设计

Design of Digital Temperature and Humidity Instrument Based on AT89C51

1.
School of Information and Electronics of Beijing Institute of Technology, Beijing 100081, China. 2.School of Electrical and Information Engineering of Anhui University of Science and Technology, Hua

摘要: 针对机械式和非数字式温湿度仪不能上传数据的问题，设计了一种以单片机AT89C51为控制核心的数字式温湿度仪；详细介绍了该测量仪的硬件及软件设计，并给出了数字式温湿度传感器SHT11的3个操作函数即复位时序函数、写字节时序函数和读字节时序函数的编程实现。测试结果表明，该测量仪可靠性高、成本低。
- 数字式温湿度仪 /
- 数字式温湿度传感器 /
- AT89C51 /
- SHT11
Abstract: In view of problem that mechanical and non-digital temperature and humidity instruments cannot upload data, a digital temperature and humidity instrument taking single-chip microcomputer AT89C51 as control core was designed. Hardware and software design of the instrument were introduced in details and programming implementation of three operation functions of SHT11 were given, namely reset sequency function, writing byte sequency function and reading byte sequence function. The test result showed that the instrument has high reliability and low cost.
- digital temperature and humidity instrument, digital temperature and humidity sensor, AT89C51, SHT11 /