Founded in 1971 >
Chinese Sci-tech Core Periodicals >
British Science Abstracts (SA, INSPEC) Indexed Journals >
United States, Cambridge Scientific Abstract: Technology (CSA: T) Indexed Journals >
United States, Ulrich's Periodicals Directory(UPD)Indexed Journals >
United States, Cambridge Scientific Abstract: Natural Science (CSA: NS) Indexed Journals >
Poland ,Index of Copernicus(IC) Indexed Journals >
International Standard Serial Number:
ISSN 1001-4551
Sponsor:
Zhejiang University;
Zhejiang Machinery and Electrical Group
Edited by:
Editorial of Journal of Mechanical & Electrical Engineering
Chief Editor:
ZHAO Qun
Vice Chief Editor:
TANG ren-zhong,
LUO Xiang-yang
Tel:
86-571-87041360,87239525
Fax:
86-571-87239571
Add:
No.9 Gaoguannong,Daxue Road,Hangzhou,China
P.C:
310009
E-mail:
meem_contribute@163.com
Design of low cost capacitive touch buttons
ZHOU Zhiyong, HU Jianren
(Institute of Electron Device & Application, Hangzhou Dianzi University, Hangzhou 310018, China)
Abstract: In order to solve the problems of the traditional mechanism button which is slide and short life, the capacitive touch technology was used in touch buttons. It is widely used in many home appliances because of its simple circuit: just need one MCU and some other peripheral circuits. At first, a general introduce was given to this technology. To reduce the cost and improve the reliability, generalpurpose chip PSoC CY8C24423 was used to replace the CapSense one, designs both hardware and software were included. The experimental results show that the capacitive touch buttons have a high precision, low wrong operation rate and adjustable sensitivity.
Key words: capacitive touchsensing; PSoC; sensitivity; CY8C24423