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FAQ › GPIO & Signals › ESP32 GPIO Pins: Safe Pins, Pull-ups, Limits

// gpio pins · faq ESP32 GPIO Pins: Safe Pins, Pull-ups, Limits Filed under: ESP32 · GPIO Pins · Updated August 2026 Which pin is safe, which one bites at boot, and what the pull-up situation actually is. The pinout looks random until you know three rules: strapping pins, input-only pins, and cur

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