Post by thread:[EE]: Exciting new touch & proximity technology

all: agreed! I have been using these things for a few months now (qt110 and qt112 mostly), and they are indeed fantastic! Easy and effective and cheap. I found out about them through postings on the basic stamp list. I am so fond of them that if anyone has any questions to post i will do my best to answer them! -raphael -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads

At 05:19 PM 10/29/01 -0500, you wrote: >all: >agreed! >I have been using these things for a few months now (qt110 and qt112 mostly), and they are indeed fantastic! Easy and >effective and cheap. I found out about them through postings on the basic stamp list. >I am so fond of them that if anyone has any questions to post i will do my best to answer them! >-raphael They are pre-programmed PICs, right? Best regards, Spehro Pefhany --"it's the network..." "The Journey is the reward" spam_OUTspeffTakeThisOuTinterlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com /.-.\ (( * )) \\ // Please help if you can: \\\ dailynews.yahoo.com/fc/US/Emergency_Information/ //\\\ /// \\\ \/ \/ -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

Would they have a proximity sensor for a 50 cm range or more ? I need to measure proximity in such a range. On 29 Oct 2001, at 17:19, raphael wrote: <color><param>0000,0000,FF00</param>> all: {Quote hidden}> agreed! > I have been using these things for a few months now (qt110 and qt112 mostly), and they > are indeed fantastic! Easy and effective and cheap. I found out about them through > postings on the basic stamp list. I am so fond of them that if anyone has any questions > to post i will do my best to answer them! -raphael > <nofill> --- Marcelo Puhl .....markKILLspam@spam@catolico.com.br http://py3ss.cjb.net -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

On Tue, 30 Oct 2001 22:38:41 -0500, Spehro Pefhany wrote: >At 05:19 PM 10/29/01 -0500, you wrote: > >They are pre-programmed PICs, right? > That's what it looked like to me also, Spehro... The VDD and VSS pins are in the right places. ;-) Matt Pobursky Maximum Performance Systems -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

Check on Scott's and our web site for information on touch switch technology. w.. Matt Pobursky wrote: {Quote hidden}> On Tue, 30 Oct 2001 22:38:41 -0500, Spehro Pefhany wrote: > >At 05:19 PM 10/29/01 -0500, you wrote: > > > >They are pre-programmed PICs, right? > > > > That's what it looked like to me also, Spehro... > > The VDD and VSS pins are in the right places. ;-) > > Matt Pobursky > Maximum Performance Systems > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.

Only real way to be sure is to open one up... Anyone got the gear to do that?? David F H Ward Electronics Design Engineer Sira Electro-Optics Ltd, South Hill, Chislehurst, Kent, UK, BR7 5EH Tel: +44(0)20 8467 2636, Fax: +44(0)20 8467 6515 email: David_WardKILLspamsiraeo.co.uk http://www.siraeo.co.uk This message and any attachments is for the intended addressee only. Please contact us immediately if you have received this transmission in error. If you are not the intended recipient, you should note that any use, copying, disclosure or distribution of this information is strictly prohibited. The views of the author may not necessarily constitute the views of Sira Electro-Optics Ltd. Nothing in this email shall bind Sira Electro-Optics Ltd in any contract or obligation. {Original Message removed}

>Only real way to be sure is to open one up... The customs slip on one of my QProx orders even showed that the parts (QT11x series) were orginally sourced from Microchip in AZ... newell -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email .....listservKILLspam.....mitvma.mit.edu with SET PICList DIGEST in the body

Naysayers: are they pics? i never thought of that (i'm young yet) but i don't think so. They run on too little current and the people at qprox say that they are custom silicon. You be the judge...(read the spec sheet) Marcelo: i've gotten about 18cm out of a qt113 with a large wire mesh for an electrode, and my guess is that they could be pushed to about twice that if you're clever. If you push them that far, make sure your power supply is super stable. you could probably do better with the fancy industrial versions (much more expensive and complicated) good luck- raphael >Date: Tue, 30 Oct 2001 23:38:31 -0200 >From: Marcelo Puhl <EraseMEmarkspam_OUTTakeThisOuTCATOLICO.COM.BR> >Subject: Re: [EE]: Exciting new touch & proximity technology >Would they have a proximity sensor for a 50 cm range or more ? >I need to measure proximity in such a range. -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listservspam_OUTmitvma.mit.edu with SET PICList DIGEST in the body

On Wed, 31 Oct 2001, Walter Banks wrote: > Check on Scott's and our web site for information on touch > switch technology. > w.. For Walter's: http://www.bytecraft.com/touch.html For mine? I don't have any thing about touch sensing on my personal Web page. However, my employer Synaptics, the market leader for TouchPads, has quite a bit: http://www.synaptics.com/ . I'd really be surprised if the QProx devices are just PICs with the part number scraped off. More likely they've licensed MicroChip's core along with some proprietary circuitry and have contracted with Microchip to produce it. This is just a WAG; but it's an educated WAG. Detecting a single touch *is* straight forward. However, producing a design that is robust to variations in numerous parameters is not easy. In our touchpads, we go through numerous details to ensure robustness. This is obvious if you've ever looked closely at one of our designs. Although, we can actually not just detect touch, but, more importantly, where the touch occurred. It's not a trivial problem. As a related aside, does anybody have an application where they'd like to use capacitive touch sensing to resolve position? I have my nose to the engineering grindstone, but occasionally have my ear against the marketing wall. Scott -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email @spam@listservKILLspammitvma.mit.edu with SET PICList DIGEST in the body

Is there somewhere in the USA you can get these? ----- Original Message ----- From: "Scott Newell" <KILLspamnewellKILLspamCEI.NET> To: <RemoveMEPICLISTTakeThisOuTMITVMA.MIT.EDU> Sent: Thursday, November 01, 2001 7:21 AM Subject: Re: [EE]: Exciting new touch & proximity technology {Quote hidden}> >Only real way to be sure is to open one up... > > The customs slip on one of my QProx orders even showed that the parts > (QT11x series) were orginally sourced from Microchip in AZ... > > > newell > > -- > http://www.piclist.com#nomail Going offline? Don't AutoReply us! > email spamBeGonelistservspamBeGonemitvma.mit.edu with SET PICList DIGEST in the body > > > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email TakeThisOuTlistservEraseMEspam_OUTmitvma.mit.edu with SET PICList DIGEST in the body

Where is the URL? ----- Original Message ----- From: "Walter Banks" <RemoveMEwalterTakeThisOuTBYTECRAFT.COM> To: <PICLISTEraseME.....MITVMA.MIT.EDU> Sent: Wednesday, October 31, 2001 7:38 PM Subject: Re: [EE]: Exciting new touch & proximity technology {Quote hidden}> Check on Scott's and our web site for information on touch > switch technology. > w.. > > > Matt Pobursky wrote: > > > On Tue, 30 Oct 2001 22:38:41 -0500, Spehro Pefhany wrote: > > >At 05:19 PM 10/29/01 -0500, you wrote: > > > > > >They are pre-programmed PICs, right? > > > > > > > That's what it looked like to me also, Spehro... > > > > The VDD and VSS pins are in the right places. ;-) > > > > Matt Pobursky > > Maximum Performance Systems > > > > -- > > http://www.piclist.com hint: The PICList is archived three different > > ways. See http://www.piclist.com/#archives for details. > > -- > http://www.piclist.com hint: The PICList is archived three different > ways. See http://www.piclist.com/#archives for details. > > > -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email EraseMElistservmitvma.mit.edu with SET PICList DIGEST in the body

> > The customs slip on one of my QProx orders even showed that the parts > > (QT11x series) were orginally sourced from Microchip in AZ... > > Microchip like all other companies with a foundry rent out their excess capacity to fabless companies like Qprox. Even if they do not have excess capacity it may be more lucrative to manufacture someone else's chip design than their own. Chris Carr -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email RemoveMElistservEraseMEEraseMEmitvma.mit.edu with SET PICList DIGEST in the body