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通过430内部的AD实现AD转换并使用12864液晶显示(By 430 AD implement internal AD converter using 12864 LCD)

基于PLC的控制楼层的电梯系统，是毕业论文哦，希望对你有帮助！单片机学习：http://www.emcuc.com(Floor elevator control system based on PLC, is the thesis Oh, you want to help! SCM learning: http://www.emcuc.com)

说明：  LED流水灯和51单片机定时器程序，适合初学者(LED water lamp and 51 single timer program for beginners)

两个STM32通讯，工作在从模式的SPI源码，调试通过(Two STM32 communication, working the model of SPI source code, debugging through )

创建复杂焊盘,解密后的程序 不再输入序列号(Create complex pad, after the decryption process will no longer enter the serial number)

1.东西方向、南北方向均有红、黄、绿三种信号灯； 2.东西干道和南北干道，绿灯下情况通行，红灯情况下不行，黄灯情况下 慢行； 3.东西干道和南北干道交替控制； 4.实时提醒绿灯亮的剩余时间； 5.通行时间可调； 6.雾霾或夜间模式按钮按下，所有方向显示黄灯.(1. there are three red, yellow and green lights in east-west direction and north-south direction. 2. the East West trunk road and the north-south trunk road pass under the green light. 3. East and west main road and the north and South Main Road alternately control; 4. reminding the remaining time of the green light in real time; 5. the time can be adjusted; 6. haze or night mode button is pressed, all directions show yellow light.)

合泰单片机pb口输出1秒钟变换一次高低电平，用于测试定时器和端口输出指令。(holtek mcu,1 secend change I/0 _pb,high or low)

基于51单片机，芯片STC89c52,12864液晶屏基础显示实验源代码(Based on 51 MCU, chip STC89c52, 12864 LCD basic display experimental source code)

单片机完成两个功能：电机测速与频率测量，电机测速部分：单片机输出脉宽可调的方波控制电机速度，同时数码管显示电机的速度值。频率计部分：单片机完成对外部信号频率的测量，测量范围从2hz到10mhz，并通过数码管显示频率值。(MCU to complete two functions: motor speed and frequency measurement, the motor speed parts: the microcontroller output square wave pulse width adjustable motor speed control, digital display while the motor speed value. Frequency counter parts: MCU to complete the external signal frequency measurement, measuring range from 2hz to 10mhz, and through the digital display frequency.)

基于mega128单片机写的modbus协议源代码。(ATmega128 for modbus)