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Old 29th July 2009, 02:05 PM   #1
oublie is offline oublie  United Kingdom
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Default PS3 Style Buttons

Hi folks anyone know how the buttons on the ps3 work. They are sort of embedded into the case so that there are not moving parts or holes in the case. They seem to be touch sensitive or something. I'd like to try using a similar idea with a project but have no idea what they are.


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Old 29th July 2009, 05:29 PM   #2
star882 is offline star882  United States
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They're probably capacitive sensors.
"Fully on MOSFET = closed switch, Fully off MOSFET = open switch, Half on MOSFET = poor imitation of Tiffany Yep." - also applies to IGBTs!
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Old 30th July 2009, 09:56 AM   #3
oublie is offline oublie  United Kingdom
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Thanks Star any idea where i'd purchase these for as as power on/off - im in europe.
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Old 30th July 2009, 10:04 PM   #4
amc184 is offline amc184  New Zealand
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Stores like Farnell will have them, just as long as you realise they require a microcontroller to use. Not as simple as just wiring them up.
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Old 30th July 2009, 11:36 PM   #5
Mr Evil is offline Mr Evil  United Kingdom
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Resistive touch switches are easier to DIY - you can make them with just a couple of NOT gates.
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Old 30th July 2009, 11:41 PM   #6
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I've never seen a PS3 in real life. But if you want finger proximity, you could use an LED/photodiode combination beneath some dark tinted perpex.
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Old 31st July 2009, 02:11 PM   #7
Andreq is offline Andreq  Canada
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If you want a simple solution...

Look for QT110 chip.

It's a single touch sensitive switch IC.

I think Quantum was bought by Atmel, because I can only find the QT110 on Atmel website now :S

Anyway, there is planty of information about QT110 and similar on the web.

Eg : (in French, but the schematic and picture are quite self explaining)
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Old 4th August 2009, 10:33 AM   #8
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apem piezo button ,very nice but $$
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