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.

The largest known prime number: 282589933-1

In my humble opinion, I'm always right. 

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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

The largest known prime number: 282589933-1

In my humble opinion, I'm always right.