GPIO: General-Purpose I/O

SDK definitions for GPIO.

const esp32_gpioMux_t esp32_gpioMux[40]

const int8_t esp32_adc2gpio[20]

ESP32_LOW

ESP32_HIGH

ESP32_INPUT

ESP32_OUTPUT

ESP32_PULLUP

ESP32_INPUT_PULLUP

ESP32_PULLDOWN

ESP32_INPUT_PULLDOWN

ESP32_OPEN_DRAIN

ESP32_OUTPUT_OPEN_DRAIN

ESP32_SPECIAL

ESP32_FUNCTION_1

ESP32_FUNCTION_2

ESP32_FUNCTION_3

ESP32_FUNCTION_4

ESP32_FUNCTION_5

ESP32_FUNCTION_6

ESP32_ANALOG

ESP32_DISABLED

ESP32_RISING

ESP32_FALLING

ESP32_CHANGE

ESP32_ONLOW

ESP32_ONHIGH

ESP32_ONLOW_WE

ESP32_ONHIGH_WE

digitalPinIsValid(pin)

digitalPinCanOutput(pin)

digitalPinToRtcPin(pin)

digitalPinToAnalogChannel(pin)

digitalPinToTouchChannel(pin)

digitalPinToDacChannel(pin)

enum gpio_driver::GPIO_INT_TYPE

Defines the GPIO interrupt type.

Values:

GPIO_PIN_INTR_DISABLE = 0

Interrupt disabled for this pin

GPIO_PIN_INTR_POSEDGE = 1

Interrupt occurs on positive edge

GPIO_PIN_INTR_NEGEDGE = 2

Interrupt occurs on negative edge

GPIO_PIN_INTR_ANYEDGE = 3

Interrupt occurs on both positive and negative edge

GPIO_PIN_INTR_LOLEVEL = 4

Interrupt occurs when GPIO low

GPIO_PIN_INTR_HILEVEL = 5

Interrupt occurs when GPIO high

struct esp32_gpioMux_t

#include <gpio.h>

Public Members

uint8_t reg

GPIO register offset from DR_REG_IO_MUX_BASE

int8_t rtc

RTC GPIO number (-1 if not RTC GPIO pin)

int8_t adc

ADC Channel number (-1 if not ADC pin)

int8_t touch

Touch Channel number (-1 if not Touch pin)