一种基于TM1638的智能仪表键盘显示电路设计

摘要

In order to achieve man-machine interactive function of intelligent instrument, a design scheme of using keyboard display driver chip TML638 with serial interface to manage the LED digital tube and keyboard is proposed. The specific hardware design and software design by using TM1638 and STC11F02 are introduced.%为了实现智能仪表的人机交互功能，提出了一种采用具有串行接口的键盘显示驱动芯片TML638来对LED数码管及键盘进行管理的设计方案，给出了TM1638与单片机STC11F02进行接口的具体硬件设计方案和软件设计思想。