单片机实现7段数码管，keilC环境，3个文件，含原理图

4位数码管动态显示1234,8951C51源程序-4-bit digital tube dynamic display 1234,8951 C51 source

此代码为7段数码管显示程序，用户可参考更改数码管个数-This code is 7 segment LED display program, the user can change the reference number of the digital control

学习型红外线遥控器，通过自学习而拥有对多台电器的遥控功能。该遥控器有两种状态：学习状态和控制状态。-Learning IR remote control, through self-learning and have the remote control of multiple electrical functions. The remote control has two states: learning state and control state.