CAPACITIVE TOUCH SENSOR WITH WET DISCRIMINATOR

[hesc_1314511]

I'm using this demo board because I have to design keyboards with glass surfaces for domestic ovens. The tests I have to do are because the glass surface can have heat and humidity, and I want to use the Capsense technology to always have a capacitive keyboard that discriminates against humidity. I have already run a software where I have set the wet function, but I think that the CApsense sensors part must be done with a dedicated PCB. Can you help me?

[VenkataD_41 · Accepted solution]

Hello,

For your application we recommend you to go with PSoC 4000S/4100S device family which has the latest CapSense IP. Please follow the layout design guidelines for designing CapSense sensors present in the documents from the links below:

http://www.cypress.com/file/41076/download

http://www.cypress.com/file/46081/download

Please refer the section for Liquid tolerance in order to implement shield for your application to make it humidity prone.

After going through the above documents please update if you have any queries.

Thanks

Ganesh