SCM 18b20 LCD display microcontroller 18b20 LCD display microcontroller 18b20 LC...

c51primer

用STC89C51RC单片机控制的I2C总线高频头程序-STC89C51RC MCU with I2C Bus tuner program

1总线通信协议应用实例-a bus communication protocol Application

二相四线制步进电机的驱动程序，时序通过验证可正常运转-two phase 4-wire stepper motor drivers, timing can be verified through normal operation

单片机菜单程序框架，多级菜单，简易数结构，方便移植-Singlechip Menu Framework, multi-level menu, a few simple structures to facilitate the transplantation

温度控制器V1.5 显示为三个共阳极LED 温度传感器用单总线DS18B20 CPU为2051，四个按键，分别为UP，DOWN，SET 温度调节上限为125度，下限为-55度 只能用于单只18B20-Temperature Controller V1.5 show for a total of three LED anode temperature sensor with single CPU for the bus DS18B20 2051, four keys, respectively UP, DOWN, SET temperature regulator ceiling of 125 degrees and lower limits of-55 degrees can only be used solely 18B20

时钟芯片将给显示时间，其包括年，月，日，小时，分钟，秒。-Will show the time clock chip, which includes year, month, day, hour, minute, second.

基于avr（mage16）的bootload实验范例，使用winavr编译。-Based on the avr (mage16) Experimental example of the serial port, use the compiler winavr.

功能： 1、作为下位机采集8255数据并将此数据通过通讯送出， 2、采集数据为BCD，先转换成二进制，处理后再转换成BCD 3、通讯采用方式3，多机通讯，上位机发地址时TB8=1，其他TB8=0 下位机SM2=1，RB8=1时产生中断后使SM2=0收发数据，结束后SM2=1-Features: 1, as under the 8255-bit machine data collection and communications sent through this data, 2, collected data for the BCD, first converted into binary, and then converted to deal with BCD 3, communication using methods 3, multi-machine communication, PC-fat address TB8 = 1, other TB8 = 0 under the digital machine SM2 = 1, RB8 = 1 when the failure to make SM2 = 0 to send and receive data, after the end of SM2 = 1

本程序是基于MFRC500射频卡读写器的单片机控制程序，所用单片机为AT89C52.-This procedure is based on RF card reader MFRC500 microcontroller control procedures, using microcomputer AT89C52.