DTMF encoder chip HT9200 51 interface program. R2 said input parameters to send...

内容： 1、试验目的：了解按键的扫描原理 2、实现现象：同时按键抢答，先按的键有效，其他按键锁死 复位后重新开始抢答 3、硬件要求：按键 LED灯 原理：最先按下按键者有效，其他均无效-Contents: 1, test Objective: To understand the key principles of scanning two to achieve phenomenon: the key to answer in the same time, press the key and effective, other key-lock reset and re-start to answer in 3, the hardware requirements: button LED lights principle: first press the keys are valid, others are null and void

//115.2k串行口通信程序，校验方式为简单双向校验, //而且是必要的，因为任何采用中断、crc等的方法 //均很难保证速度和避免错误. //总体速度5KB/秒 //单片机程序 //使用22.1184晶振-//115.2k serial port communication procedures and testing methods for the simple two-way check,// it is necessary, because any interruption used, the method crc// it is very difficult to ensure speed and avoid mistakes.// Overall speed 5KB/s// MCU procedures// crystal use 22.1184

以数字形式显示时、分、秒时间，十位、个位备用一个数码管显示，分秒为一个60进制计数器，小时为一个“十二翻一”计数器 扩展功能：闹钟、仿电子钟报时、触摸报整点时数和自动报整点时数-clock

利用NRF9e5芯片编写的C51源代码，可实现点到点无线通信接收部分。-NRF9E5 chips prepared using C51 source code, can be achieved to receive part of point-to-point wireless communications.

基于AVR单片机的串转并大屏幕汉字显示 开发环境 I-Based on the AVR MCU series and big screen to show the development environment of Chinese Characters I

PHILIP的一双串口单片机的第2个串口的通讯例程-PHILIP pair of the serial microcontroller two serial communication routines

编译环境是KEIL,仿真环境是PROTEUS,控制彩灯的闪烁，利用51单片机，内含Keil C51教程可以使大，家了解彩灯的设计同时学习KEIL。-Compiler environment is KEIL, simulation environment is PROTEUS, control of the flashing lantern, using 51 single-chip, including Keil C51 Guide can enable the home to understand the design of lanterns at the same time learning KEIL.

８９Ｃ２０５１控制的智能密码锁,4*4键盘控制.-89C2051 control of the intelligent password lock, 4* 4 keyboard control.

c8051f020 lcd 简单应用程序-c8051f020 lcd simple application

对DS18b20传感器网络编码和搜索,以及对连接线的短路和开路进行检测-right DS18b20 sensor network coding and search, and the link between the short-circuit and open circuit detection