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Is it possible to make sensing distance 5cms using PCF8883 evaluation board (OM1105) nad external plate

Question asked by Vijayendra Kumar on May 9, 2017
Latest reply on Jun 1, 2017 by Dario Arias

Hi All, 

 

I am trying to achieve a sensing distance of around 4~5 cms using PCF8883 on OM11055 eval board. I am attaching an external sensing plate of area around 4"x4". I followed steps  form UM10370 like cutting the CP1 connection etc...

 

But what I am observing is whole PCB is turning sensing to touch.

What should be optimal component values(CCPC,CCLIN ,RC etc.) for this sensing distance . I am on a tough timeline for this project .So Request your urgent help.

 

Regards,

Vijayendra

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