Source for small (e.g., PDA/phone) color touch panels
in [Embedded]
|
From: D Yuniskis on 18 Feb 2010 15:49 while(1); wrote: > "D Yuniskis" <not.going.to.be(a)seen.com> wrote in message > news:hlk3bi$btu$2(a)speranza.aioe.org... >> Yeah, pricey. As I said, I figure I can get "everything" in >> a "used" PDA for considerably less. If this was a full prodcuction >> run, then I could afford to "buy new". :-/ > > So, what's your question, then? Get that PDA, cannibalize it and you're > done... My *question* was whether there were other "inspired" options to get the functionality that I desire. See Jon Kirwan's post, this date.
From: Jon Kirwan on 18 Feb 2010 15:45 On Thu, 18 Feb 2010 13:48:22 -0700, D Yuniskis <not.going.to.be(a)seen.com> wrote: >Hi Jon, > >Jon Kirwan wrote: >> On Wed, 17 Feb 2010 15:29:58 -0700, D Yuniskis >> <not.going.to.be(a)seen.com> wrote: >> >>> I am looking for 10 - 20 small-ish color LCD touch panels >>> for a "one off" project. In these small quantities, I suspect >>> I may be better off purchasing a bunch of "appropriate" PDA's >>> on eBay and cannabilizing them for parts (?). That could >>> also be a win as the MCU therein already has support for >>> driving the panel (so, I could just "talk to" the MCU instead). >>> >>> Suggestions? Alternatives? Panels must be backlit and >>> work with "finger" touch (not require a stylus). >> >> The first thing that came to mind was a replacement screen >> for the touch-half of a Nintendo DS from DealExtreme. >> Something like these two pieces? >> >> http://www.dealextreme.com/details.dx/sku.26582 >> http://www.dealextreme.com/details.dx/sku.3245 > >Excellent! Yes. I assume the two are assembled together >(sandwich) in the Nintendo? I.e., I would have to mechanically >mount them atop each other. Yes, that's how it's done. And it is backlit. If you don't have a DS Lite, buy one. Play with it, see how it "feels" to you. Examine the backlighting, the touch, etc. You can even _develop_ code for it, as there are groups who have put together a fairly nice toolset to do all that with some readily available "cartridges" you can plug into it. You get two ARM processors in there, plus some memory, and so on, as well as two displays, one that is touchable, buttons, and an RF link that is compatible with most routers. DealExtreme offers some small screwdrivers to dismantle the DS Lite, as well (couple of dollars.) So you can pretty much go exploring. >> That may still leave too much yet to be done. > >I will look into the DS and see what it's capabilities are >as well as what the likely interface would entail. > >Thanks! Let me know how it looks. I'm very interested in either the positives or negatives you uncover. I'd appreciate the update, very much. Jon
From: Frank-Christian Krügel on 18 Feb 2010 16:46 Am 17.02.2010 23:29, schrieb D Yuniskis: > Hi, > > I am looking for 10 - 20 small-ish color LCD touch panels > for a "one off" project. In these small quantities, I suspect > I may be better off purchasing a bunch of "appropriate" PDA's > on eBay and cannabilizing them for parts (?). That could > also be a win as the MCU therein already has support for > driving the panel (so, I could just "talk to" the MCU instead). > > Suggestions? Alternatives? Panels must be backlit and > work with "finger" touch (not require a stylus). Look for displays with ILITEK ILI9320, ILI9325, ILI9328 controller chip. These displays are very easy to handle, have typically 240x320 pixel and 256k colors and sizes of 2.4" up to 2.8". Some also have resistive touch. Googling ILI9328 spills out some sources. Maybe there is a dealer who is willing to send out a dozen units as paid samples. Mouser has this one: 763-2.4240320SFCTXIT 17 pieces left. -- Mit freundlichen Gr��en Frank-Christian Kr�gel
From: D Yuniskis on 19 Feb 2010 16:54 Hi Jon, Jon Kirwan wrote: > On Thu, 18 Feb 2010 13:48:22 -0700, D Yuniskis > >> Jon Kirwan wrote: >>> On Wed, 17 Feb 2010 15:29:58 -0700, D Yuniskis >>> >>>> I am looking for 10 - 20 small-ish color LCD touch panels >>>> for a "one off" project. In these small quantities, I suspect >>>> I may be better off purchasing a bunch of "appropriate" PDA's >>>> on eBay and cannabilizing them for parts (?). That could >>>> also be a win as the MCU therein already has support for >>>> driving the panel (so, I could just "talk to" the MCU instead). >>>> >>>> Suggestions? Alternatives? Panels must be backlit and >>>> work with "finger" touch (not require a stylus). >>> The first thing that came to mind was a replacement screen >>> for the touch-half of a Nintendo DS from DealExtreme. >>> Something like these two pieces? >>> >>> http://www.dealextreme.com/details.dx/sku.26582 >>> http://www.dealextreme.com/details.dx/sku.3245 >> Excellent! Yes. I assume the two are assembled together >> (sandwich) in the Nintendo? I.e., I would have to mechanically >> mount them atop each other. > > Yes, that's how it's done. And it is backlit. If you don't > have a DS Lite, buy one. Play with it, see how it "feels" to > you. Examine the backlighting, the touch, etc. You can even > _develop_ code for it, as there are groups who have put > together a fairly nice toolset to do all that with some > readily available "cartridges" you can plug into it. You get > two ARM processors in there, plus some memory, and so on, as > well as two displays, one that is touchable, buttons, and an > RF link that is compatible with most routers. > > DealExtreme offers some small screwdrivers to dismantle the > DS Lite, as well (couple of dollars.) So you can pretty much > go exploring. > >>> That may still leave too much yet to be done. >> I will look into the DS and see what it's capabilities are >> as well as what the likely interface would entail. > > Let me know how it looks. I'm very interested in either the > positives or negatives you uncover. I'd appreciate the > update, very much. <frown> The NDS seems a bit pricey for what I want to do. Shelling out ~$2K for essentially 20 "screens" is way overkill. :< I.e., I'd still have hardware and software tasks in addition to fighting with a platform that wasn't *designed* to support "open" development (it appears nintendo has actively tried to thwart folks repurposing their device) But, the screen+touchpanel may be a viable option. I have to research that some more -- the DX offering seems to be unclear on whether the cited LCD is, in fact, the LOWER display and not the UPPER. Even their "clarification" of the issue seems ambiguous :-/ I've also found a few surplus vendors from whom I might be able to order a small lot (25-50 units). That option, however, leaves me too much fexibility (!) in terms of picking a size, etc. :-/
From: JosephKK on 20 Feb 2010 00:40
On Fri, 19 Feb 2010 14:54:53 -0700, D Yuniskis <not.going.to.be(a)seen.com> wrote: >Hi Jon, > >Jon Kirwan wrote: >> On Thu, 18 Feb 2010 13:48:22 -0700, D Yuniskis >> >>> Jon Kirwan wrote: >>>> On Wed, 17 Feb 2010 15:29:58 -0700, D Yuniskis >>>> >>>>> I am looking for 10 - 20 small-ish color LCD touch panels >>>>> for a "one off" project. In these small quantities, I suspect >>>>> I may be better off purchasing a bunch of "appropriate" PDA's >>>>> on eBay and cannabilizing them for parts (?). That could >>>>> also be a win as the MCU therein already has support for >>>>> driving the panel (so, I could just "talk to" the MCU instead). >>>>> >>>>> Suggestions? Alternatives? Panels must be backlit and >>>>> work with "finger" touch (not require a stylus). >>>> The first thing that came to mind was a replacement screen >>>> for the touch-half of a Nintendo DS from DealExtreme. >>>> Something like these two pieces? >>>> >>>> http://www.dealextreme.com/details.dx/sku.26582 >>>> http://www.dealextreme.com/details.dx/sku.3245 >>> Excellent! Yes. I assume the two are assembled together >>> (sandwich) in the Nintendo? I.e., I would have to mechanically >>> mount them atop each other. >> >> Yes, that's how it's done. And it is backlit. If you don't >> have a DS Lite, buy one. Play with it, see how it "feels" to >> you. Examine the backlighting, the touch, etc. You can even >> _develop_ code for it, as there are groups who have put >> together a fairly nice toolset to do all that with some >> readily available "cartridges" you can plug into it. You get >> two ARM processors in there, plus some memory, and so on, as >> well as two displays, one that is touchable, buttons, and an >> RF link that is compatible with most routers. >> >> DealExtreme offers some small screwdrivers to dismantle the >> DS Lite, as well (couple of dollars.) So you can pretty much >> go exploring. >> >>>> That may still leave too much yet to be done. >>> I will look into the DS and see what it's capabilities are >>> as well as what the likely interface would entail. >> >> Let me know how it looks. I'm very interested in either the >> positives or negatives you uncover. I'd appreciate the >> update, very much. > ><frown> The NDS seems a bit pricey for what I want to do. >Shelling out ~$2K for essentially 20 "screens" is way >overkill. :< I.e., I'd still have hardware and software >tasks in addition to fighting with a platform that >wasn't *designed* to support "open" development (it >appears nintendo has actively tried to thwart folks >repurposing their device) > >But, the screen+touchpanel may be a viable option. I have >to research that some more -- the DX offering seems to >be unclear on whether the cited LCD is, in fact, the LOWER >display and not the UPPER. Even their "clarification" >of the issue seems ambiguous :-/ > >I've also found a few surplus vendors from whom I might be able >to order a small lot (25-50 units). That option, however, >leaves me too much fexibility (!) in terms of picking a size, >etc. :-/ Dina 'nyone tell ya? Choice is wealth. And wealth is one of the magnificent old men of the sea. |