touch_pad_read_raw_data() function

get raw data (touch sensor counter value) from IIR filter process. Need not request hardware measurements.

Syntax

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Summary

Declaration

Definition

from touch_sensor.h:83

esp_err_t touch_pad_read_raw_data(touch_pad_t touch_num, uint16_t *touch_value);

Implemented in touch_sensor.c:395

Arguments

Argument

Description

touch_num

touch pad index

touch_value

pointer to accept touch sensor value

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_raw_data. This function can be called from ISR

Examples

touch_pad_read_raw_data() is referenced by 1 libraries and example projects:

References

from examples

touch_pad_read_raw_data() function

Syntax

Arguments

Return value

Notes

Examples

References

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