An Environmental Sensing and APP Display System Based on IoT

Abstract

This research develops a cheap and multi-functional environment sensing and APP display system. The sensing end of this system is composed of CO2 sensor, PM2.5 sensor, GPS module, memory module, microprocessor, Bluetooth,,,,,etc.. The sensed information can be stored in the memory module, and then use computer and mobile phone to observe the curve of data changes, and proceed further analyze, discuss, and decision-making. This research mainly writes a mobile APP program, uses Bluetooth to control the sensor memory module data, and then displays them on the mobile phone. The values sensed by various sensors can be observed from the mobile phone screen, and the changing curve can be present. In addition, it can also display the sensing time and location of a sensing value in map mode, so that the complete sensing data information can be clearly understood from the mobile phone.