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touch_pad_read_filtered() function
get filtered touch sensor counter value by IIR filter.
Syntax
Implemented in ![]()
touch_sensor.c:408
Return value
- ESP_OK Success - ESP_ERR_INVALID_ARG Touch pad parameter error - ESP_ERR_INVALID_STATE This touch pad hardware connection is error, the value of "touch_value" is 0. - ESP_FAIL Touch pad not initialized
Notes
touch_pad_filter_start has to be called before calling touch_pad_read_filtered. This function can be called from ISR
Examples
Code
Location
Call Tree
from 0/2 examplestouch_pad_read_filtered() calls 2 functions:
Data Use
from 0/2 examplestouch_pad_read_filtered() reads 9 variables: