R134a汽车空调循环计算

按键控制8×8LED点阵屏显示图形,proteus仿真(Button control 8 × 8LED dot matrix screen display graphics)

51单片机考勤系统下位机程序，可以配合上位机软件实现考勤功能，将hex文件下载到51单片机即可使用(51 MCU control procedures can be achieved with the PC software attendance function, the hex file into the microcontroller 51 can be used)

流水灯 能控制LED灯逐次闪烁，并能调控亮灭的时间 等(Water light can control the successive flashing LED lights, and can control the time of light off)

说明：  数码管时钟 电子钟 时分秒 可调时分 基本功能 （1） 可由按键调整时间 （2） 可整点报时（“嘟、嘟”声） （3） 可设定时，定时时间到发出“嘟、嘟”声 显示器件可选 段式LED显示或者LCD模块显示，嘟嘟声可选用蜂鸣器。(Digital tube clock electronic clock hour minute second adjustable time basic function (1) The time can be adjusted by pressing the key (2) Time can be reported at the same time ("beep, beep") (3) It can set the timing, and the "beep, beep" sound will be emitted when the timing is up to Segment LED display or LCD module display can be selected for display device, and buzzer can be selected for beep sound.)

基与PIC单片机的所编写的LCD子程序 .(PIC-based microcontroller with LCD subroutines prepared.)

Very hard to find Texas Instruments software (ADP.exe) for calculating circular and rectangular coils for RFID application (13.56Mhz and 125kHz). Software is very accurate. Software is 16-bit, so it must be run on Windows XP (not compatible with Windows 7)

MBD Debug Software and PCB File

推挽式DCDC变换器的闭环仿真，电压闭环，输出稳定(DCDC converter push-pull-loop simulation, the voltage loop, stable output)

STm32F103 w5500 dhcp

数码相框（一个简单的数码相框程序，有I2S，LED,LCD，按键等等）(Digital Photo Frame)