这是使用MAX3100和89S52单片机的红外放射原理图和用C语言写的程序代码。-This is the use of MAX3100 and MCU 89S52 Schematic infrared radiation and the use of C language to write the program code.

用VHDL编写的播放器，播放射雕英雄传主题曲之《铁血丹心》，另附编码表WORD档-Using VHDL prepared player, the player shooting Heroes theme song of

利用单片机最小系统以及超声波放射、接收传感器实现超声波测距。 -The smallest single-chip system and ultrasonic radiation, receiving sensor ultrasonic ranging