中文摘要：

设计了能够实时检测周围环境温湿度、PM2.5值的便携式检测器,该检测器以Arduino UNO开发板为核心,由外部多个传感器采集数据,通过在Arduino IDE上的编程控制数据采集,经处理换算后将结果呈现在显示屏上,显示数值每隔2.5 s更新一次,从而达到实时检测的目的。该检测器在45～80μg/m^3范围内与汉王N1型霾表相对偏差小于±5%,具有快速响应、实时更新、简单实用的特点。

英文摘要：

Design a portable detector that can real-time detect ambient temperature,humidity and PM2. 5 values.The detector uses an Arduino UNO board as the core,and collects data by multiple sensors. By programming on the Arduino integrated development environment（ IDE）,control data acquisition,and the processed results will be presented on monitor,the displayed data will update once every 2. 5 s,so as to achieve the purpose of real-time detection. At range of 45 ~ 80 μg / m~3,this detector has relative deviation less than ± 5 % comparing with Hanwang N1 type haze meter,and the detector has features of sensitive response,real-time update,simple and practical.