remote input

The principal of PS/2 keyboard and mouse is described, and a new design is proposed to implement a multi-keyboard and mouse system with local and remote input.

概述了PS/2键盘/鼠标的原理,论述了一种在单片机控制下,基于RS-485电平与TTL电平转换,具有本地及远程输入能力的多键盘/鼠标系统,并给出了电路原理图和软件流程图。

In order to solve the problem above,it will be introduced that CAN bus technology is used in CNC system with an example of designing a long-distance I/O station.

在数控系统领域中,经济型数控系统输入输出接口紧缺和输入输出信号在远程传输过程中易受干扰问题越来越明显,在对以上问题研究的基础上,提出了一种基于CAN总线设计数控系统远程输入输出模块的方案。