矩阵键盘的一种简捷高效识别算法

A Simple and Efficient Recognition Algorithm for Matrix Keyboard

矩阵键盘是单片机应用技术中常用的模块,以51单片机为例,要正常使用矩阵键盘,首先要识别键盘,当用户按下任意一个按键的时候,通过软件程序计算出被按下的开关按键的按键号。本文提出一种矩阵键盘识别的新算法,基于新算法编写的键盘识别程序更加简洁高效,特别是按键越多越体现它的优越性。

Matrix keyboard is a commonly used module in the application technology of single chip computer.To use the matrix keyboard normally,the first step is to identify the keyboard.When the user presses any key,the key number of the pressed switch key is calculated by the software program.In the paper,a new algorithm for matrix keyboard recognition is proposed.The keyboard recognition program based on the new algorithm is more concise and efficient,especially the more keys,the more advantages it has.