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:

Journal Article

Journal or Publication Title:

Circuit Cellar - The Magazine For Computer Applications

Uncontrolled Keywords:

/dk/atira/pure/researchoutput/libraryofcongress/q1

Subjects:

?? touch sensor capacitive cs_eprint_id2240 cs_uid429q science (general)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 21:04

Refereed?:

Yes

Published?:

Published

Last Modified:

10 Jan 2024 00:13

URI:

https://eprints.lancs.ac.uk/id/eprint/42462