程序功能：基于MSP430F149通过按键控制继电器通断，并在数码管显示状态，程序测试成功-Program features: Based on the MSP430F149 control relay on and off by pressing a button, and in the digital display, and the program successfully tested

用红外遥控器控制继电器，没有测试过，提供源码供大家参考。-Infrared remote control relay, not tested, providing the source code for your reference.