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[esp32] Mention ignore_pin_validation_error in flash pin error message

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ESP32 modules like the ESP32-PICO-V3-02 use a different flash pin
configuration where GPIO7 and GPIO8 are freely usable. The existing
ignore_pin_validation_error option allows bypassing this check but
the error message did not mention it, making it hard to discover.
This commit is contained in:
J. Nick Koston
2026-03-19 19:53:28 -10:00
parent 02ada93ea5
commit d0726754c3
1 changed files with 5 additions and 1 deletions
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esphome/components/esp32/gpio_esp32.py
+5 -1
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@@ -28,7 +28,11 @@ def esp32_validate_gpio_pin(value: int) -> int:
raise cv.Invalid(f"Invalid pin number: {value} (must be 0-39)")
if value in _ESP_SDIO_PINS:
raise cv.Invalid(
f"This pin cannot be used on ESP32s and is already used by the flash interface (function: {_ESP_SDIO_PINS[value]})"
f"This pin cannot be used on ESP32s and is already used by the flash interface"
f" (function: {_ESP_SDIO_PINS[value]})."
f" If you are using an ESP32 module that uses a different flash pin"
f" configuration (e.g. ESP32-PICO-V3-02), you can set"
f" 'ignore_pin_validation_error: true' to bypass this check."
)
if 9 <= value <= 10:
_LOGGER.warning(