AVR mega16 使用的矩阵键盘和1602液晶程序代码，带Proteus仿真。 按一键后在LCD1602 屏幕上显示按键号。-Code of Matrix keyboard and LCD1602 for AVR mega16, with Proteus simulation. After press the key, display key’s number on the LCD1602 screen .

Describe a plan describing the construction of the final prototype. “What key functionalities are you hoping to demonstrate? What materials and prototyping processes will you be using?-Describe a plan describing the construction of the final prototyp