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"
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default BLINK_LED_GPIO if IDF_TARGET_ESP32 || IDF_TARGET_ESP32C2
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default BLINK_LED_RMT
help
Defines the default peripheral for blink example
config BLINK_LED_GPIO
bool "GPIO"
config BLINK_LED_RMT
bool "RMT - Addressable LED"
endchoice
config BLINK_GPIO
int "Blink GPIO number"
range ENV_GPIO_RANGE_MIN ENV_GPIO_OUT_RANGE_MAX
default 8 if IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32H4 || IDF_TARGET_ESP32C2 || IDF_TARGET_ESP32C6
default 18 if IDF_TARGET_ESP32S2
default 48 if IDF_TARGET_ESP32S3
default 5
help
GPIO number (IOxx) to blink on and off or the RMT signal for the addressable 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