capsensor with analog mux

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cross mob
Anonymous
Not applicable

hi there.

   

 

   

I would like to use a circle type electrode as both button type capsensor and other use. 

   

so, I tried use a amux to change path to the circle type electrode.

   

 

   

if amux set 0, the path is ( first setting ) 

   

CapSense_CSD -> mux -> the circle type electrode

   

if amux set 1, the path is ( second setting )

   

another circuit -> mux -> the circle type electrode 

   

 

   

the problem is.. when i use the first setting the capsensor button shows always ON state. 

   

when mux is disabled,  capsensor works fine. so I think activated mux should changes capsensor working condition.

   

 

   

I have thought that the mux is just switch.... the above condition says another properties of mux must be exist..

   

 

   

thanks 

   

kkadin

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1 Reply
himam_31
Employee
Employee
50 likes received 25 likes received 10 likes received

Hello Kakadin,

   

 

   

Is it possible for you to give more information. Please give us your schematic and project.

   

 

   

Thanks,

   

Hima

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