一个比较通用的行列键盘程序,c语言的

MCS51单片机的宏汇编器源程序。有需要的朋友请下载！-MCS51 MCU macro assembler source code. Friend in need, please download!

I2C总线程序，及读写24C04-I2C bus procedures, and writing 24C04

基于盛群单片机开发的 获得温湿传感器dht11和光敏电阻的数据 并且发送到1602显示屏的程序-Holtek-based single-chip temperature sensor was developed and photosensitive resistance dht11 and sent to the data display process 1602

128*64LCD功能程序（原创）-128* Embedded function (original)

一个基于mc9s12dg128b，时间捕捉器的示例代码-Based on mc9s12dg128b, time catcher of the sample code

全量程交直流无档电压表的设计 这里只给出了系统设计的方案 带有程序流程图-Wide-range AC-DC voltage meter free stall design here only gives the system design program with a program flow chart

DS1302制作的带农历和节日提醒功能的万年历。原理图+keil源码-DS1302 produced with the Chinese and the calendar function to remind holiday. schematic+ Keil source

6段数码管分别显示，时，分，秒，四个按键，K1（P0.0），K2（P0.1）， K3（P0.2），K4（P0.3），四个按键用来调时间的，按下K1，所有位都清零显示，然后按下K2，秒在闪烁，继续按K2分闪烁，不段地按K2 秒--分--时切换着闪烁，在某位闪时按下K3相应位加一，确认调整，按K4，取消调整再按K1。在K1按下以后才有调时的功能，如果K1没有按下，按别的键没有反映。这为了在加点按键功能留着用 -6 respectively of the digital control, when, minutes and seconds, four keys, K1 (P0.0). K2 (P0.1), K3 (P0.2), K4 (width), the four keys to the transfer time, press the K1, All spaces are reset, then press K2, the scintillation seconds, according to K2 pm flickered. not according to K2 of seconds-- minutes-- when switching to flicker in certain press the flash-K3 corresponding increase in a confirmed adjustment by K4, then canceled K1 adjustment. K1 in the press will only be made after the transfer of function, if K1 pressed by other key is not reflected. This points to the function keys used Retention

16C84的使用例程：包括16C84的RB口中断程序和16C84做的智能卡程序。-16C84 use routines include : 16C84 RB I interrupt procedures and 16C84 do smart card procedures.

usb开发 HID_KEYS 用单片机模拟usb开发-usb analog usb development HID_KEYS with MCU Development