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)
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.