51单片机ds1302驱动程序，肯定是好地

51单片机中的波特率发生器51 single-chip baud rate generator in-51 single-chip baud rate generator in

LCD多级菜单具体实现,欢迎下载-LCD multi-level menu realize welcome download! !

本方法的基本思想就是利用单片机具有的PWM端口，在不改变PWM方波周期的前提下，通过软件的方法调整单片机的PWM控制寄存器来调整PWM的占空比，从而控制充电电流-The basic idea of this method is the use of microcontroller has the PWM ports, without changing the PWM square wave cycle, under the premise of the method to adjust by software MCU PWM control registers to adjust the PWM duty cycle and thus control the charge current

使用LPT口，模拟IIC，界面友好，使用方便，不失为一个硬件调试的好帮手！ 亦可透过IIC实现双机互连，因为IIC支持主从模式:-)-LPT I used to simulate IIC, friendly interface and ease of use, hardware debugging is a good helper! Through dual-IIC interconnection, as IIC support from the main mode :-)

MSP430F247 Program Example-MSP430F247 application

51单片机驱动针式打印头的程序-51 Microprocessor needle procedures print head

超声波测距模组使用说明书v1.0.pdf-Ultrasonic Ranging Module Manual v1.0.pdf

此为基于PT2272的无线接受程序，经过实验,可行.

pt2240 Datasheet only.

基于pic单片机的嵌入式系统的以太网通信的软件程序，可以实现pic单片机以太网开发板的网络功能，以及学习TCP/IP协议栈的使用方法-Pic based on the Embedded System Single Chip Ethernet communications software program, can achieve single-chip Ethernet development board pic of network functions, as well as learning TCP/IP protocol stack to use