The Research And Implementation Of Smart Home System Based On OpenWrt And Arduino

The development of Internet of Things and electronic tecnology make is possible that more devices have access to the Internet.The second-hand development of embedded router and the popularity of free cloud platform lead to a rapid development of intelligent hardware.This kind of embedded intelligent products combined with Internet can realize personalized customized services and network resources sharing more easily.Thus it attracts a lot of consumers and developers.Under this technical background and market demand,a smart home remote monitoring system is studied and realized on the basis of second-hand development of router,OpenWrt system,Arduino,Android and WiFi technology.In this paper,the smart home system is mainly composed of intelligent gateway and Android client.The gateway consists of three parts:WiFi core board,USB extension and Arduino control center.The core board of WiFi is 703n router mainboard transplantted with OpenWrt system and responsible for the communication with cloud server and mobile phone client;USB extension is used to mount TF card in order to install MySQL or Python softwares;Arduino is responsible for collecting the data of each testing terminal or executing the control commands sent by the mobile client,realizing the data transmission with OpenWrt.The client is based on the Android platform because of its large amount of users.The client designed has a good man-machine interface,convenient operation and complete functions.It also has an access to iFLYTEK speech recognition interface,realizing convenient voice control function and a better service to customers.The testing terminal is composed of a temperature and humidity sensor,a relay,a human body infrared sensor and a camera module.Each sensor and relay module transmit the sensor data by Arduino and NRF24L01WiFi module,acheving data acquisition and control.Finally,the testing of the system can basically meet the expected requirements.