利用51单片机对RTL8109进行控制，实现以太网通讯功能。

基于凌阳单片机的语音麦克风的录入程序 详细解释-Sunplus based on single-chip voice recording microphone procedures explained in detail

为LCD 显示程序，已经在AVR ATmega16 上调试过-For the LCD display program has been raised in the AVR ATmega16

motorbike alarm and theft control

一个简单的利用查表法的反正切和正、余弦函数，在处理速度不快的单片机编程中，这是一个使用的方法。-The use of a simple arctangent look-up table method and positive, cosine function, the processing speed of microcontroller programming unpleasant, this is a method used.

液晶显示器LM24064的驱动程序，可能支大家有点帮助。-LM24064 LCD driver may support a bit to help everyone.

使用RTX-51 tiny操作系统的em12864液晶驱动程序-use RTX-51 operating system em12864 tiny LCD Driver

c8051f120端口模拟的I2C,点亮PCF8574驱动的发光二极管-c8051f120 simulated port I2C, lit PCF8574-driven light-emitting diodes

注:protel电路图 1.INPUT12为高压气压和低压压传感器输入端. 2.OUTPUT为充气输出控制端. 3.当高低压有接地信号时,电机正转,气阀打开. 4.INPUT2低气压时有信号时,充气OUTPUT输出,充气电机转. 5.RS1与RS2是调节阀门距离用地 6.RS3是与气阀电机同步时,是气阀电机的转动圈数传感器. 7.RS4是调节延时时间用地-Note: protel circuit 1.INPUT12 and low-voltage high-pressure pneumatic pressure sensor input. 2.OUTPUT output control for the inflated side. 3. When the high and low pressure have a grounding signal when the motor is transferred, the valve opens. 4.INPUT2 low pressure when there is signal output OUTPUT inflatable, inflatable motor switch. 5.RS1 and RS2 is the regulator valve from the land 6.RS3 synchronous motor with the valve, the valve motor is rotating circle the number of sensors. 7.RS4 delay time to regulate land

ds18b20和1602液晶显示，能精确读取温度到小数点后两位。-LCD ds18b20 and 1602 can accurately read the temperature to two decimal places.

LED条屏显示程序,但是对初学者，尤其是苦于类似毕业设计的人应该有些帮助。 -Article LED screen display program, but for beginners, in particular, suffer from a similar design should be graduating from some help.