摘要
Abstract
Music is composed of notes and beats. Every note has a fixed frequency. If the timer of single chip microcomputer produces the same frequency as notes, and uses the delay to control the beat at the same time, then music can play. By using P1.0, P1.1 pin of AT89C51 output audio signals at the same time, the player can produce the chord music.关键词
播放器/单片机/定时器/AT89C51Key words
Player/Single Chip Microcomputer/Timer/AT89C51分类
信息技术与安全科学
