单片机和电脑串口通讯，这个是电脑向单片机发送数据。

我做的超声波测距程序，基于at的8位单片机的，用c语言编写的。-I do ultrasonic distance measurement procedure, based at the 8-bit microcontroller, using c language.

美国达拉斯温度传感器DS18B20的温度数值转化程序。-Dallas DS18B20 the temperature into numerical procedures.

该程序用于控制电机的速度,通过占空比PWM来实现该功能.-The program used to control motor speed and PWM duty cycle to achieve through this feature.

用485实现单片机之间的串行通信。 主机部分发送从机地址，等待从机响应，从机准备好就发数据,发完就接收从机的响应，接受成功就跳出循环，否则重发。-MCU with 485 Serial Communication between. Host of this address from the plane, waiting for the response from the plane, from the plane ready to discuss the data, finished on the reception of the response from the plane. set aside for recycling success, otherwise re-issued.

本人收集和自己写的部分51系列例程,供各位参考-I collect and write their own routine part of 51 series for your reference

嵌入式系统ucos如何移植到c51单片机，重点解释了局部变量的覆盖问题和函数的再入性问题。-Embedded System CENTER how to transplant c51 microcontroller, explained the focus of the coverage of local variables and function of reentry issues.

开发硬件电路需要用到液晶显示模块1602的用户必备。调试实验源程序第五部分。-Hardware needed to develop liquid crystal display module 1602 required the user. Part V of the experimental source code debugging.

基于AT89C51的电子钟源程序和Protel电路图，该电路可以实现定时开关灯，整点报时，在线调整时间、日期、定时开时间和定时关时间。 Protel电路图 其它类别 电子钟源程序 电路图源程序-AT89C51-based electronic clock source and Protel circuit, the circuit can realize lamp timer switch, the whole point of time, on-line adjust time, date, time and from time to time from time to time to open clearing time. Protel circuit diagrams of other types of electronic circuit source clock source

AT89S52单片机控制的LED跑马灯实验的程序-AT89S52 MCU LED Marquee experimental procedures