MCP23016在智能化多路控制系统中的应用研究

Application Research of MCP23016 in Intelligent Multiplex Control System

随着物联网的快速发展,智能化系统的应用日益广泛。但是,微控制器的IO端口有限,难以应对日益繁多的外部设备的控制需求。针对此难题,应利用IIC扩展芯片实现多路控制进行解决。以超低功耗MSP430G2253为主控芯片,通过16位IIC芯片MCP23016进行扩展,配合Web Server,使用户能够通过手机随时随地的对1024条线路的通断进行远程控制。实践表明,该系统具有扩展能力强、稳定可靠、响应快速、成本低廉等优点。

With the rapid development of internet of things, the application of intelligent system has become increasingly popular. However, the IO ports of micro-controller is limited and can not cope with the control demand of increasing external equipment. Targeting at this problem, this paper proposed to use the IIC chip to realize the intelligent multiplex control, which took the ultra-low power consumption MSP430G2553 as the control core, extended the IO port by MCP23016, coordinated with the Web Server, and finally realized the user＇s remote control 1024 lines on-off whenever and wherever by mobile phone. Practice showed that the system had the advantages of strong extension, great stability and reliability, fast response and low cost.