Chapter 2. API Reference
TOUCH_PAD_GPIO6_CHANNEL
TOUCH_PAD_NUM6_GPIO_NUM
TOUCH_PAD_GPIO7_CHANNEL
TOUCH_PAD_NUM7_GPIO_NUM
TOUCH_PAD_GPIO8_CHANNEL
TOUCH_PAD_NUM8_GPIO_NUM
TOUCH_PAD_GPIO9_CHANNEL
TOUCH_PAD_NUM9_GPIO_NUM
TOUCH_PAD_GPIO10_CHANNEL
TOUCH_PAD_NUM10_GPIO_NUM
TOUCH_PAD_GPIO11_CHANNEL
TOUCH_PAD_NUM11_GPIO_NUM
TOUCH_PAD_GPIO12_CHANNEL
TOUCH_PAD_NUM12_GPIO_NUM
TOUCH_PAD_GPIO13_CHANNEL
TOUCH_PAD_NUM13_GPIO_NUM
TOUCH_PAD_GPIO14_CHANNEL
TOUCH_PAD_NUM14_GPIO_NUM
Header File
• components/hal/include/hal/touch_sensor_types.h
Structures
struct touch_pad_denoise
Touch sensor denoise configuration
Public Members
touch_pad_denoise_grade_t grade
Select denoise range of denoise channel. Determined by measuring the noise amplitude of the denoise
channel.
touch_pad_denoise_cap_t cap_level
Select internal reference capacitance of denoise channel. Ensure that the denoise readings are closest
to the readings of the channel being measured. Use touch_pad_denoise_read_data to get the
reading of denoise channel. The equivalent capacitance of the shielded channel can be calculated from
the reading of denoise channel.
struct touch_pad_waterproof
Touch sensor waterproof configuration
Public Members
touch_pad_t guard_ring_pad
Waterproof. Select touch channel use for guard pad. Guard pad is used to detect the large area of water
covering the touch panel.
Espressif Systems 411
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