Design And Development Of Wireless Monitor System Based On STM32 And ZigBee

With the frequent haze weather,deteriorating air quality is increasingly affecting people's lives and health.The aggravation of environmental pollution makes people eager to understand the air quality of the living environment at any time.Therefore,to design a portable air quality monitoring equipment is in line with the background of the current environment pollution and people's life needs.At present,many scientific and technical personnel have designed all kinds of special gas detection equipment,but with single function.This design applys STM32 controller,wireless sensor network,touch screen technology in the wireless monitoring system.It can be used for individual,community or business.It can monitor multiple data wirelessly,display data flexibly and friendly.This thesis presents an environmental monitoring system based on STM32 and ZigBee.The system is composed of three parts,data acquisition and transmission,data process,data display.Data acquisition and transmission module is composed of two ZigBee terminal node and a coordinator,each terminal node collects data by the temperature,the smoke and the dust sensor and transmits datas through the ZigBee wireless network.In data processing module,the coordinator receives data and sends them to the STM32 controller,STM32 alarms,and then distributed datas to LCD.In the data display module,we transplant embedded graphics ibrary emWin in the TFTLCD,then edit interface and draw curves with sensing datas.Datas of different nodes can be switched by touching according button.This thesis introduces the background,the development status,the main technologys and the hardware and software design of the each module.Through continuous experiment and improvement,the system can achieve expected functions,such as the acquisition of sensing data,stable wireless transmission and beautiful LCD data display,etc.