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计算器是日常工作和学习生活中的常用工具c语言设计计算器，人们利用它代替了许多复杂计算，包括加减乘除和其他运算。
设计功能描述：
1、采用51单片机作为主控单元芯片；
2、采用作为显示模块；
3、采用16键矩阵按键输入；
4、可以运算两个数之间的加减乘除；
5、最大运算:9999*9999，可运算负数；
按键说明：
整体方案
本课题模拟计算器设计硬件电路采用三部分电路模块构成，第一部分是键盘模块电路，采用4*4矩阵式键盘作为输入电路；第二部分是液晶显示模块；第三部分是以51单片机作为控制核心。
电路设计
采用Altium 作为电路设计工具。Altium 通过把原理图设计、PCB绘制编辑、拓扑逻辑自动布线、信号完整性分析和设计输出等技术的完美融合，为设计者提供了全新的设计解决方案，使设计者可以轻松进行设计c语言设计计算器，熟练使用这一软件必将使电路设计的质量和效率大大提高。
仿真设计
采用作为仿真设计工具。是一款著名的EDA工具（仿真软件），从原理图布图、代码调试到单片机与外围电路协同仿真，一键切换到PCB设计，真正实现了从概念到产品的完整设计。
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