简易交通灯控制电路
摘 要
简易交通灯的控制电路的设计，综合运用的模拟电子技术，数字
电子技术及单片机的相关知识，其核心由单片机at89s52控制，四
个路口各用三个红、黄、绿、灯显示，led数码管显示时间，用译码
器7448往数码管中送数据，以减少单片机IO口的占用，用PNP三极
管8050增加驱动能力，制作成一个简易的交通灯。
关键词： 简易交通灯 模电 数电at89s52 译码器 三极管
Take to
Simple trac lights control circuit design, the integrated use
of analog electronic technology, digital electronic technology
and related knowledge, its core is composed of a single chip
computer AT89S52 control, four intersection with three red,
yellow, green, light shows, LED digital display of time, using
7448 digital tube decoder to send data, in order to reduce the
occupation of SCM IO port, using PNP three. 8050 increase
the driving capability, to create a simple trac light.
评论0
最新资源