基于AT89C52的可配置环境检测仪设计

A configurable environment detector designed based on AT89C52

环境检测仪以AT89C52为控制核心,从芯片DS1302读取时间信息,从单总线温湿度传感器DHT11读取温湿度信息。利用具有串行输入输出的芯片TLC2543读取模拟传感器光度、气体等信息。检测仪利用TLC2543的多模拟输入通路可同时连接多个模拟传感器,实现检测可配置功能。整个检测仪具有可配置、便携式、硬件简单的特点,检测仪还可设置参数的上下限值以及实现报警功能。

The environment detector adopts AT89C52 as the control core,reads time information from the chip DS1302,reads the temperature and humidity information from the single bus temperature and humidity sensor DHT11. Meanwhile,the detector uses the chip TLC2543 which has serial input and output structure to read information from analog sensors,such as luminosity,gas and other information. Moreover,the detector also uses multiple analog input channels of the chip TLC2543 to connect multiple analog sensors,therefore realizes the configurable function. The detector is configurable,portable and the hardware is simple,particularly the detector can set the upper and lower values of the parameters and realize the alarm function.