Najit IC pro cteni dotykove klavesnice.

Rozmer klavesnice 4x4

Rohove srouby ve volnem miste mezi srouby posuvniky. 

Dvouvrstvy plosny spoj. Tlacitka ze shora. Zespodu IO.

Reference:

Modul od Sparkfun:
http://mbed.org/users/4180_1/notebook/mpr121-i2c-capacitive-touch-sensor/
pouzity IO
http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MPR121&webpageId=1091050279861702938268&nodeId=0112698268&fromPage=tax


Technologie od Atmelu:
http://www.atmel.com/products/touchsolutions/bsw/buttons_10.aspx

Tenhle vypada zajimave
http://www.atmel.com/devices/AT42QT2120.aspx?tab=documents