Design of a data acquisition system for touch screen
As one of the mainstream ways of human-computer interaction, touch screens have very important research value. One of the important directions is the development of self-capacitive touch screens. However, the current self-capacitive touch screen data acquisition circuit has only 13 capacitive channe...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | zho |
| Published: |
National Computer System Engineering Research Institute of China
2022-04-01
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| Series: | Dianzi Jishu Yingyong |
| Subjects: | |
| Online Access: | http://www.chinaaet.com/article/3000148338 |
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| Summary: | As one of the mainstream ways of human-computer interaction, touch screens have very important research value. One of the important directions is the development of self-capacitive touch screens. However, the current self-capacitive touch screen data acquisition circuit has only 13 capacitive channels at most, which severely limits the expansion of the number of touch points in the development of self-capacitive touch screens. In view of the problem of the small number of capacitive channels in the touch screen data acquisition circuit , a touch screen data acquisition system controlled by Arduino is designed, including hardware and software. The hardware part is a touch detection circuit, which can detect up to 24 capacitance channels, and the software part is a graphical interface. It can detect the working status of the touch point of the self-capacitive touch screen in real time，and dynamically display the working status of touch points in the form of graphical interface. |
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| ISSN: | 0258-7998 |