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Looking for a good touchscreen testbed

Devin Bryant
Prodigy 30 points

Hello everyone.


This seems the most appropriate place to post this. I've been trying to find a good touchscreen device (between the size of an iPod and a tablet) that I can send X/Y coordinate data to a computer equipped with LabVIEW (through a Data Acquisition Card). The X/Y coordinates would need to be sent in real time because I need slide touch capability. The only other requirement would be the capability to display an image on the screen. It can be a developer's kit touchscreen or a commercial touchscreen as long as it has those capabilities.

Since it seems the users of this forum do a lot of projects involving touchscreen devices I am very hopeful that your experience will be able to help me out. I've contacted many manufacturers and they haven't really had what I am looking for. Please let me know if you have any questions or suggestions. Thank you!

  • 0
    TI__Guru 52115 points

    Hi Devin,

    What kind of touchscreen solution are you looking for? Capacitive touch or resistive touch? How many fingers do you need to support? One finger, two fingers or multi-fingers? 

    If you just want a simple one-finger resistive touch module,  I think a plenty of touchscreen + LCD modules are available for you.

    Andy

  • 0 in reply to Andy Liu (BMS)
    Prodigy 30 points

    Hello Andy,

    I know this reply is almost a month too late. Somehow I overlooked the automated e-mail. If you're still interested, I'm looking for (preferably) a multi-finger capacitive touch screen. I think at the bare minimum a resistive touch one finger model would work, but the ones that I have come across do not support sliding (they are only for clicking buttons). I need the finger sliding capability and access to the real time coordinate data. Thanks again, and sorry for the late reply.

  • 0 in reply to Devin Bryant
    TI__Guru 52115 points

    Hi Devin,

    I will give you more info on the touch devices you are interested in tomorrow.

    Andy 

  • 0 in reply to Devin Bryant
    TI__Guru 52115 points
    Hi Devin,

    Sorry for my late reply. What do you mean by "sliding"? Is it an one-finger gesture, like "flick"? If yes, the "sliding" gesture could be detected by some software IP, which is called "gesture engine". Actually, this gesture could be done by either resistive or capacitive touch.

    Andy
  • 0 in reply to Andy Liu (BMS)
    Prodigy 30 points

    Imagine that you had an image on the screen and you wanted to feel its texture. You would slide your finger across the screen to feel it. I guess a better word would be rub. That is what I mean. I know most touchscreens can handle that sort of thing, but I'm looking for one that I can easily access that X,Y coordinate "rubbing" information and do something with it. I was thinking a development kit would be easier instead of trying to break into the software on a commercial device. Is that wrong?

  • 0 in reply to Devin Bryant
    TI__Guru 52115 points
    Hi Devin,

    From my point of view, the "rub" gesture is more like a firmware / software job and it doesn't require some special touch function from the touch device. All you need is just some precise X&Y coordinates from some touch controller and you can detect the "rub" gesture in your own firmware / software. All the touch devices from TI will provide you with the X&Y coordinates and some pressure as well.

    Andy