Network Sensor of Temperature & Humidity based on RS485 Interface

摘要：

RS485 is an important communication protocol during CPU and external communication device, which is widely used in monitor-control system and project application. DS18B20 is used to test temperature in the sensor of temperature and humidity based on 89S52 MCU. ADC0831 is extended to convert the output signal of humidity sensor-NKHT, from which humidity value can be got. The value of temperature and humidity not only can be displayed on LCD, but also can be output using RS485 interface, from which network control system for temperature and humidity can be accomplished easily by users. The sensor has many advantages such as high precision, low cost, small volume, easy to construct network and so on.

关键词： 89S52 MCU DS18B20 ADC0831 NKHThumidity sensor

作者: Lv Zhigang Wang Peng

作者单位: School of Electronics and Information Engineering,Xi’an Technological UniversityXi’an City, China

会议类型: 国际会议

会议名称: 2010 3rd International Conference on Advanced Computer Theory and Engineering(2010年第三届先进计算机理论与工程国际会议 ICACTE 2010)

会议地点: 成都

会议语种:英文

页码: 1-3

在线出版日期: 2010-08-20（万方平台首次上网日期，不代表论文的发表时间）