The aim of this application note is to show to scan the 4x4 matrix keypad multiplexed with a four 7-segment display. The software attached to this application note scans the pressed key and displays it on the multiplexed 7- segment LEDs. Thi

M AT L A B是一个可视化的计算程序，被广泛地使用于从个人计算机到超级计算机范围内 的各种计算机上-M AT LAB is a visualization of the calculation procedure is widely used in personal computers to supercomputers from within On various computer