基于FPGA的无线键盘设计与测试  

Design and Testing of Wireless Keyboard Based on FPGA

作　　者：吴建新[1] 陈任 WU Jianxin;CHEN Ren(School of Electronic Infomation and communications,Huazhong University of science and Technology,Wuhan,430074,China)

机构地区：[1]华中科技大学电信学院,湖北武汉430074

出　　处：《长江信息通信》2024年第3期13-16,共4页Changjiang Information & Communications

基　　金：华中科技大学实验技术研究项目(2024035)。

摘　　要：面对机械键盘不易携带、噪声大和造价高的缺点,开发了一款基于人体电容感应和FPGA的无线触控键盘。整个平台由外设系统、FPGA系统和上位机组成。外设系统通过介质及信号采集电路,设计出便捷的键盘或触控板;FPGA系统是Nexys4 DDR型号的FPGA硬件开发平台,把接收到的数据进行处理、发送和监控;上位机包括蓝牙电路及上位机程序,通过蓝牙通信实现键盘对上位机的PPT翻页、文档键入、游戏操控、鼠标移动以及钢琴弹奏等无线控制应用。实践表明,由于外设介质和上位机操控的设计多样化,不仅使平台在广度和深度具有层次性,而且可以调动学生的学习兴趣、培养学生的思考能力、激发学生的创新意识。Facing the shortcomings of mechanical keyboard,which is not easy to carry,high noise and high cost,a wireless touch keyboard based on human capacitive sensing and FPGA is developed.The whole platform is composed of peripheral system,FPGA system and upper computer.The peripheral system designs a convenient keyboard or touch board through media and signal acquisition circuit;FPGA system is the FPGA hardware development platform of Nexys4 DDR model,which processes,sends and monitors the received data;The upper computer includes Bluctooth circuit and uppcr computer program.Through Bluctooth communication,the keyboard can realize wireless control applications such as PPT page turning,document typing,game control,mouse movement and piano playing.Practice has shown that due to the diversity of design of peripheral media and PC operation,not only does the platform have hierarchy in width and depth,but also it can mobilize students'interest in learning,train students'thinking ability and stimulate students innovative consciousness.

关 键 词：无线键盘 FPGA 电容感应 层次性 

分 类 号：G420[文化科学—课程与教学论]