Question

谁能帮我编写一下，单片机门铃程序呀？

我用的是AT89C51芯片，需要有四个按键对应四个门铃。用的是蜂鸣器，谁能帮我把这个门铃的汇编程序或者C语言程序编写出来呀。万分感激。急急急 急急急

Answer 1

ngle-Chip Microcomputer) is a set of CPU, RAM, ROM, the timing, number and variety of integrated micro-controller interface. MCS-51 microcontroller which is all typical and representative of a widely used in various fields. The planned main topics designed by chip - microcomputer control of the music. The music by the SCM system is the smallest system and the planned expansion of LED display circuit and voice circuit. MCU for the use of assembly language programming, press the button on Bell. and regularly interrupted LED showed that the initial value of the notes function. This paper introduces the doorbell music software, hardware design, and in design, Commissioning the problems encountered and solutions. The topics designed musical doorbell system is simple, cost low-cost, fully functional, very practical.

Answer 2

给10分，给你写个程序，拉倒吧，我是没那个时间。

追问

就修改一下程序，我刚申请的帐号没有那么多的几分呀。

追答

电路图有吗？