STM32-based Smart Home System

With the development of economy and the improvement of life quality, personal and property safety, as well as the quality of life and work environment have been paid more attention to. Reliable Smart home systems are becoming more and more important. New types of smart home system are generated to satisfy the current needs instead of the traditional automated facilities.A system that combines intelligent alarm system with window opening machine is designed, with the function of intelligent alarm and low risk coefficient received by controlling the switch of the window through analyzing the sensor information. Emphasis on the analysis of hardware and software design of electrical isolation, over-voltage and over-current protection, remote control, GSM module, motor control, LCD display and battery charging, etc.Combining the modern sensor technologies to the modern information processing technologies, a smart home system based on STM32F103is developed. The system analyzes information from sensors, GSM module and human-computer interface, then control motor modules to open and shut down corresponding windows. At the same time, warning information is sent to user’s mobile phone by using short message. In this way, user’s security and comfort can be guaranteed. Moreover, multiple protective measures and isolation measures are taken, and standby electric power is switched on when AC power off. So not only make the whole system has strong anti-interference ability and high reliability, and expand the application field of the system. In software design, system function is divided into multiple tasks, and according to the importance of the tasks assigned to them priority, both to ensure the reliable task execution, and improve the real-time performance of the system. So that this system can be applied to Intelligent Agriculture and other related fields.