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Multichannel Touch Sensors

Oppenheim, Matthew (2010) Multichannel Touch Sensors. Circuit Cellar - The Magazine For Computer Applications, 1 (234). pp. 46-53. ISSN 1528-0608

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    Abstract

    A versatile, modular and scalable multi-channel touch sensor system is demonstrated. The touch sensors are constructed using the Qprox QT1103 10 channel capacitive touch sensor IC. A working 100 channel touch sensitive keyboard using five of the sensor boards is detailed. Device integration is enabled using a dsPIC (dsPIC33FJ128GP706) controller board. A stand alone 20 channel device incorporating Bluetooth wireless communications is also demonstrated. This incorporates a LM3658B battery management IC circuit with a rechargeable lithium battery. Correct device operation is verified using a novel port expander arrangement based on the MCP23S17 port expander IC.

    Item Type: Article
    Journal or Publication Title: Circuit Cellar - The Magazine For Computer Applications
    Uncontrolled Keywords: touch sensor capacitive cs_eprint_id ; 2240 cs_uid ; 429
    Subjects: Q Science > Q Science (General)
    Q Science > QA Mathematics > QA75 Electronic computers. Computer science
    Departments: Faculty of Science and Technology > School of Computing & Communications
    ID Code: 42462
    Deposited By: ep_importer_comp
    Deposited On: 10 May 2010 22:04
    Refereed?: Yes
    Published?: Published
    Last Modified: 06 Sep 2014 21:16
    Identification Number:
    URI: http://eprints.lancs.ac.uk/id/eprint/42462

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