51单片机汇编课程设计案例精编 外部中断的简单应用，中断应用—红外解码，LCD1602显示，空调温度控制器，简易电子琴设计，I2C总线原理及应用实例……等等,51 cases of single-chip fine compilation of curriculum design for a simple application of an external interrupt, interrupt the application- IR decoding, LCD1602 display,