摘要
为了强化学生对基于PLC的LED点阵显示驱动控制接口的认识和理解,拓宽学生对不同品牌的PLC的接触面,本文提出了一种PLC对64路LED点阵进行显示控制的实验项目方案。本文的设计方案中,采用和利时LM3108K作为主控单元,结合74HC194、74HC595及CD4046等集成芯片控制点阵的行列扫描选通,实现了对64路LED点阵的灯光显示控制。
In order to improve the understanding and knowledge of students for LED- matrix display drive control interface based on PLC,expand the contact of students for different bands of PLC as well,this article provides a design of PLC-based display control experiment item for LED- matrix with 64- dots. In this design,the display control of LED- matrix with 64- dots is accomplished,in which LM3108 K is used as core control unit,together with 74HC195、74HC595 and CD4046 ICs to control row-column scan of the matrix.
出处
《自动化与仪器仪表》
2015年第11期222-224,共3页
Automation & Instrumentation
