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Embedded and Microcontrollers
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Embedded and Microcontrollers
Pic Microcontrollers Forum PIC12F683 mtouch PIC16F886
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Forum Thread Details
  • State Verified Answer
  • Replies 8 replies
  • Subscribers 193 subscribers
  • Views 888 views
  • Users 0 members are here
  • microchip
  • pic16f886
  • mtouch
  • pic12f863
Related

PIC12F683 mtouch PIC16F886

Former Member
Former Member over 14 years ago

Hallo.

 

Ist der PIC12F683 oder der PIC16F886 mtouch fähig? Wenn ja, welche register müssen wie gesetzt werden damit die Verwendung der Kapazitieven Eingänge möglich ist???

 

Leider liefert das Internet keine brauchbaren Antworten.

 

 

Danke im Voraus für eure Mithilfe.

 

http://www.microchip.com/wwwproducts/devices.aspx?ddocname=en010115

 

http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en026562

 

http://www.youtube.com/watch?v=jBQ8zbmxUck

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  • Former Member
    0 Former Member over 13 years ago

    Please, use English.

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  • Former Member
    0 Former Member over 13 years ago in reply to Former Member

    Hello.

     

    I'm looking for some help to create a mtouch application.

     

    The relaxation oszillator works, but i have problems with the detection of a touch. It only works good when i touch the copper of the sensor directly, and my body must have a good connection to earth (touch a radiator with the other hand).

     

    The strange thing is that it also works (with direct touch and radiator) when i use accus for supply.

     

    I also tried to use different kinds of touchsensors: doubleside cooper board 1*1cm; 2,5*2,5cm; 10*16cm; no cahange!

     

    I'm using PIC16F886

     

    Thanks for your feedback

     

    It should work like this:

     

    http://www.youtube.com/watch?v=BLz2Rynxfq4

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  • Former Member
    0 Former Member over 13 years ago in reply to Former Member

    o.k.

     

    My work is going fine. I don't need a radiator anymore, but i need an oszilloscope. It works fine when i touch the cooper directly, but only when the oszi is connected to the touchsensor.

     

    So my first idea was to simulate the oszi with resistor and capacitor. but it doesn't work. the internal resistor of the oszi is more than 2000M and the capacitance is round about 1,5nf. i try to simulate it with 10M and 1,5nf, but no success. i tryed with resistor only and with capacitor only, no matter.

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  • Former Member
    0 Former Member over 13 years ago in reply to Former Member

    ok, update:

     

    it works through a sheet of paper, i've changed the sensitivity, but it only works with the connection to the oszi....

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  • Former Member
    0 Former Member over 13 years ago in reply to Former Member

    ok, update:

     

    it works through a sheet of paper, i've changed the sensitivity, but it only works with the connection to the oszi....

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  • Former Member
    0 Former Member over 13 years ago in reply to Former Member

    after playing a while with sensitivity i could make it to recognize a touch through the wood of desk, through a book, ....

     

    but it only works with the oszi...

     

    i tryed to disconnect the oszi at the bnc-plug, so only the 1,5m rg58 is connected to the elektronic, and it works.

     

    i measure the capacitivity of the rg58: about 47pf

    so i try to simulate it with a capacitor, don't work....

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  • Former Member
    0 Former Member over 13 years ago in reply to Former Member

    My colleagues think that the cable works like an antenna, but i don't think that. There is no influence from the location of the cabel. I can furl it to a role, or place it like a snake across the table.

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  • Former Member
    0 Former Member over 13 years ago in reply to Former Member

    So, i Use an other PIC-Prozessor and it works much better!! Maybe the fault was to use a breadboard.

     

    THANKS FOR NO REPLY!!

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