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Embedded and Microcontrollers
Embedded Forum [ESC] Capacitive touch PIC for a dollar
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[ESC] Capacitive touch PIC for a dollar

Catwell
Catwell over 15 years ago
During a visit to the ESC expo in Chicago, I stumbled across Microchip's PIC16F707 microcontroller. The next big thing from Microchip, as they told me. The main feature making this particular uC stand out is the mTouch, projected capacitive touch-screen sensing technology, built right into the chip. And to top that off, you get royalty-free code to use for developing mutitouch interfaces. This chip is currently only supporting 2 simultaneous inputs, but the code also supports gestures. So, this is leaps and bounds over the classic single touch environments of the past. The absolute best part of this whole offering is the price, $0.99 cents in volume, and approximately $3-$5 dollars for small quantities.


Now, what is a good source for capacitive touch panels?

 
What I want now is a PIC with multitouch and PWM motor driving capabilities.


Cabe
Attachments:
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  • bheemarao
    bheemarao over 15 years ago in reply to firatkocak +1
    Hi Firat, A resistive touchscreen panel is composed of several layers, the most important of which are two thin, metallic, electrically conductive layers separated by a narrow gap. When an object, such…
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  • WestfW
    0 WestfW over 15 years ago

    Is supporting capacitive sensors, even with "multitouch", the same as supporting capacitive touch "screens" ?

    the PIC16F707 appears to support two sets of sensors with up to 16 buttons each, which I think implies:

    1. if you want multitouch, you'd only have 16 available buttons.
    2. that's individual buttons; not a high-res touch-screen thing.  I don't know if it's possible to scan a matrix of sensors or not.
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  • WestfW
    0 WestfW over 15 years ago

    Is supporting capacitive sensors, even with "multitouch", the same as supporting capacitive touch "screens" ?

    the PIC16F707 appears to support two sets of sensors with up to 16 buttons each, which I think implies:

    1. if you want multitouch, you'd only have 16 available buttons.
    2. that's individual buttons; not a high-res touch-screen thing.  I don't know if it's possible to scan a matrix of sensors or not.
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