esp-idf/examples/get-started/blink/main/Kconfig.projbuild

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menu "Example Configuration"
orsource "$IDF_PATH/examples/common_components/env_caps/$IDF_TARGET/Kconfig.env_caps"
choice BLINK_LED
prompt "Blink LED type"
default BLINK_LED_GPIO if IDF_TARGET_ESP32 || IDF_TARGET_ESP32C2
default BLINK_LED_STRIP
help
Select the LED type. A normal level controlled LED or an addressable LED strip.
The default selection is based on the Espressif DevKit boards.
You can change the default selection according to your board.
config BLINK_LED_GPIO
bool "GPIO"
config BLINK_LED_STRIP
bool "LED strip"
endchoice
choice BLINK_LED_STRIP_BACKEND
depends on BLINK_LED_STRIP
prompt "LED strip backend peripheral"
default BLINK_LED_STRIP_BACKEND_RMT if SOC_RMT_SUPPORTED
default BLINK_LED_STRIP_BACKEND_SPI
help
Select the backend peripheral to drive the LED strip.
config BLINK_LED_STRIP_BACKEND_RMT
depends on SOC_RMT_SUPPORTED
bool "RMT"
config BLINK_LED_STRIP_BACKEND_SPI
bool "SPI"
endchoice
config BLINK_GPIO
int "Blink GPIO number"
range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
default 5 if IDF_TARGET_ESP32
default 18 if IDF_TARGET_ESP32S2
default 48 if IDF_TARGET_ESP32S3
default 8
help
GPIO number (IOxx) to blink on and off the LED.
Some GPIOs are used for other purposes (flash connections, etc.) and cannot be used to blink.
config BLINK_PERIOD
int "Blink period in ms"
range 10 3600000
default 1000
help
Define the blinking period in milliseconds.
endmenu