The Smart Switch Design Based On RT-thread

With the development of technology and improvement of people’s living standards, people pay more attention to the comfort and safety of home life. Thus the popularity of Smart Home is imperative. As an essential module of Smart Home, a smart switch solution with the function of touch control and wireless transmission is given by this paper.The composition and working principle of the smart switch was briefly described in paper, and a hardware architecture with an STM32F051C4 chip at the core was given. Then a master controller circuit, a touch detection circuit, an off-on control circuit, a state detection circuit etc. were detailed designed. The control software of the smart switch was designed based on the embedded operating system named RT-Thread and included a command processing module, a state detection module, a touch control module and an on-line debugging module. Then the coordination control of multi-threads was discussed. Finally, the smart switch prototype was tested and the result showed that the design of this paper meeted the technical requirements.