这是一个实现PC上位机控制下位机（单片机）通过GSm模块发送短信的源代码。...

SHT71数字温湿度传感器的AVR单片机驱动程序-SHT71 digital temperature and humidity sensor AVR Single Chip Driver

在8位单片机中对32位数进行开方运算的汇编子程序-In 8-bit MCU in 32-digit prescription for computing the compilation of subroutines

利用MSP430 单片机的一般 I/O口进行的数字量的采集 利用A/D采集通道实现模拟量到数字量的转化-use of the general I/O port for the digital collection using A/D channel analog output of the digital conversion

PIC系列单片机配合8019网络芯片的TCP/IP协议栈。MICROCHIP公司参考。-PIC microcontroller series with 8019 networking chip TCP/IP protocol stack. Going before the company reference.

LPC915的I2C模块配置为主机时的接口程序，可直接添加到工程里使用-LPC915 I2C module configuration for the host interface can be directly added to the used in the project

基于单片机的电动机的正反转电路 机构简单，介绍详细-Based on single-chip motor body positive circuit is simple, to introduce a detailed

1.通过键盘、LCD来进行超低功耗实验 2 在一段时间内，如果用户没有进行按键操作，系统将进入“睡眠”－－低功耗状态 3 用户按键后，系统从低功耗状态转到正常的工作状态 4 在非低功耗状态下，程序接收键盘按键执行加法器操作(因为键盘和LCD限制不能实现复杂 5 的功能,如乘法、减法、除法等）.-1. Through the keyboard, LCD for ultra low-power experiment 2 over a period of time, if the user does not have keys to the operation, the system will enter a " sleep" - low-power status 3 users button, the system switch from the low-power state to normal working condition 4 in the non-low-power state, the implementation of procedures to receive the keyboard keys adder operation (because the keyboard and the LCD can not limit the complexity of the functions of 5, such as multiplication, subtraction, division, etc.).

在c8051f020上实现的crc校验程序，绝对原创-C8051f020 achieved in the crc check procedures absolute originality

用此源代码，可以用于继电器测试仪的开发，通过继电器测试仪可以测试继电器的状态等-Use this source code, can be used to relay tester development, through the relay tester can test the status of relays, etc.

使用AVR芯片MEGA16同时产生三路完全同步pwm频率波，1MHZ,1KHZ,1HZ.使用CVAVR软件编译-use AVR chip MEGA16 to generate three synchronous pwm of 1MHZ,1KHZ,and 1HZ。compiled by CVAVR