QT60000 Series Touch sensor

Orion

Does anyone have any experience with the QT60168/QT60248 or any other QT60xxx?· I’m thinking about using one in an upcoming project. Just wondering if anyone had nightmares or success stories, they care to share.·

Datasheet
http://www.qprox.com/downloads/datasheets/qt60248_402.pdf

dandreae

I didn't know if you knew that we carry the QT113-D touch sensor·http://www.parallax.com/detail.asp?product_id=604-00038.· I'm not sure if this will work for your project?

Dave



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Dave Andreae

Tech Support
dandreae@parallax.com
Http://www.parallax.com

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Orion

Yes, I saw that, that’s where I got the idea to use such an IC. I·require minimum of 12 keys (0-9, Enter, BS). The QT113-D only has one input, that’s going to get messy for 12. A built-in serial interface would be nice. After pondering it for a few days, I'm looking at the QT160-D x2. The cons to the spi versions were the only package I could find (in small quantities) was TQFP. I don't really want to deal with that at this time. SOIC would be no problem. Down the road, I see myself trying to the spi versions.


12 * 8pin dip = 96 holes to drill!! ahhhhhhhh!· Where's the pcb drilling machine?

Post Edited (Orion) : 8/10/2005 11:26:01 PM GMT

Dangerous

Hi from the UK,

I'm a newbie on this site.

Did you ever get any further with the QT matrix chips(QT60168/60248)?

I have a working project with the 16 key version, but am having a permanent error code. Although the unit deilvers the correct code for keys in use, it also tell me that it is permanently calibrating! Wierd or what! (The reponse to command 0x06 always has bit 6 high which is an error code. This will mean nothing unless you have used the chip! There is no comms error, FMEA error or anything except permanent calibration.)

If anyone has any ideas please get in touch.