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A UDF of k epsilon model which can be used for modified turbulence modelling calculations with ansys fluent

CD4051/CC4051是单8通道数字控制模拟电子开关，有三个二进控制输入端A、B、C和INH输入，具有低导通阻抗和很低的截止漏电流。(CD4051/CC4051 is single channel 8 digital controlled analog electronic switch, there are three binary control input A, B, C and INH input, has low conduction resistance and very low by leakage current.)

单片机程序控制实现函数发生器的功能，在函数发生器中起主控制作用(SCM process control functions to achieve the function generator, function generator in the role play the main control)

99秒马表，在Proteus设计两个数码管动态显示及一个键盘SP。在ucos下结合keil完成开始时，显示“00”，第1次按下SP后就开始计时。 第2次按SP后，计时停止。第3次按SP后，计时归零。 (99 seconds stopwatch, two in the Proteus design dynamic digital tube display and a keyboard SP. Keil in combination ucos completed under the beginning of the show " 00" , 1st timer after pressing the SP. 2nd by SP, the time to stop. The 3rd by the SP, the time zero.)

C51单片机RTC实时时钟(DS1302)初始时间12：00：00数码管显示(The initial time of the the C51 MCU RTC real time clock (DS1302) 12:00:00 digital display)

使用飞思卡尔的单片机MPC5643L实现的电机控制代码(This is motor control with freescale CPU mpc5643l)

ad7991测试程序，需要自己填写控制字(ad7991 testing procedures need to fill their own control word)

单片机1260Sc5a 的ad 采集电压，带详细注解，适合初学者哦！(The microcontroller 1260Sc5a ad collection voltage, with detailed notes, suitable for beginners Oh!)

扫描4X4键盘,并将键值在数码管和8个LED上显示,同时将键值通过串口或RS232端口或USB发送给PC机接收并解码来自标准键盘的基本按键的扫描码。(4X4 keypad scanning, and key in the digital tube and eight LED display, while the key through the serial port or RS232 port or a USB send the PC to receive and decode the scan code of the key from the standard keyboard.)

PIC （PIC16F886） 做的简单频率计 用TMR0定时1s，将待测信号从T1CKI脚输入，用TMR1进行计数，读出TMR1H，TMR1L的值就是频率 单片机：PIC16F886 显示：LCD1602 编程语言：PIC C 附Proteus仿真。(PIC (PIC16F886) to do a simple frequency counter TMR0 timer with 1s, the test signal input pin from T1CKI with TMR1 count, read TMR1H, TMR1L value is the frequency of the microcontroller: PIC16F886 display: LCD1602 with Proteus simulation.)