Oppenheim, Matthew (2010) Multichannel Touch Sensors. Circuit Cellar, 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 |
| 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: | 26 Jul 2012 18:08 |
| Identification Number: | |
| URI: | http://eprints.lancs.ac.uk/id/eprint/42462 |
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