automotive cap touch button software filter

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LiFi_1601451
Level 2
Level 2

My project is a cap touch button on a car body. The waterproof is enabled for raining environment. I am using Capsense_CSD component for this project. Which software filter I should use for the button (Median, IIR, or others)

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Vison_Zhang
Moderator
Moderator
Moderator
First comment on KBA 750 replies posted 250 sign-ins

Firmware filters are only used to filter out noise, smooth the fluctuation of RAWDATA, it cannot enhance the water-proof feature of button. The structural design around the keys is more important. Recommend you read PSoC4 CapSense Design Guide, it introduce  water-proof more detail than component datasheet.

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Vison_Zhang
Moderator
Moderator
Moderator
First comment on KBA 750 replies posted 250 sign-ins

Firmware filters are only used to filter out noise, smooth the fluctuation of RAWDATA, it cannot enhance the water-proof feature of button. The structural design around the keys is more important. Recommend you read PSoC4 CapSense Design Guide, it introduce  water-proof more detail than component datasheet.

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