QTouch - A Little Orientation, Please?

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Hi

I have been using AtMega 64 processors for many a year and am looking for a replacement MCU for a new design. The AtMega 644 seems as good a choice as any.

However, when perusing the datasheet, I noticed a reference to QTouch and became intrigued. However, as a softy rather than H/W designer, could I beg a little orientation?

It looks to me like all one needs to do is to fit a suitable pattern of tracking on the PCB (along with a handful of passive components) and then, using the QTouch library, I get the ability to detect the proximity of fingers.

1/ Have I got the correct end of the stick?
2/ What kind of material can I read though?
3/ What kind of depth should I expect?
4/ Any pitfalls?

Thanks in advance,
Andy

If we are not supposed to eat animals, why are they made out of meat?

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1) yes

2)
http://www.atmel.com/products/to...
http://www.atmel.com/Images/doc8...

3) Ever used an iPad/iPhone or any other touch interface device? (a large number of them are using Atmel touch technology in fact).

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John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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And it's just a download? Maybe I'll quit with the buttons already.

If you don't know my whole story, keep your mouth shut.

If you know my whole story, you're an accomplice. Keep your mouth shut. 

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...as they say "don't give up your day job yet"......

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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Thanks, chaps. :)

Lunch time reading.

If we are not supposed to eat animals, why are they made out of meat?

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Day job gave me up

If you don't know my whole story, keep your mouth shut.

If you know my whole story, you're an accomplice. Keep your mouth shut.