基于MAX232、AT89C52的TTL电平转串口电路连接图-Based on MAX232, AT89C52 the TTL level to serial circuit connection diagram

AT89C52单片机与VB串行通信的实现实现vb和单片机的串行通信-can da daldfa dasfads a da f

定位系统是基于AT89C52和GARMINGPS25LP的定位测量系统。其基本功能可分为单片机对GPS器件的控制以及显示采集的信息两部分-GPS is the acronym for Global Positioning System,the Global Positioning System.Its purpose is on a global scale aerial targets on the ground and accurate positioning and monitoring

程序是基于单片机AT89C52编写的232串口接收发送-AT89C52 MAX232