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    RTC Pins Exposed for Deep Sleep Wake?

    Core2 for AWS
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    • S
      SirMichael
      last edited by

      Are any of the ESP32 RTC Pins exposed that I can use to wake the Core2 AWS?

      I can't figure out which pins could be used to wake from a Deep Sleep.

      Sir Michael

      S 1 Reply Last reply Reply Quote 0
      • S
        SirMichael @SirMichael
        last edited by

        @SirMichael

        I found my answer. Looks like I can use either pins 35 or 36. Considering that I have comms on those two pins, 36 is the RX pin, so I can just toggle the RX input to wake the Core2 from Deep Sleep.

        Sir Michael

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        • H
          hacxx
          last edited by

          For Core2 AWS Deep Sleep Wake:
          The M5Stack Core2 AWS exposes ESP32 RTC GPIOs GPIO36 (VP), GPIO39 (VN), GPIO34, GPIO35, GPIO25, GPIO26, GPIO27, and GPIO32 for external wakeup triggers. Configure via esp_sleep_enable_ext0_wakeup() or esp_sleep_enable_ext1_wakeup(). Check the Core2 pinout to avoid conflicts with built-in peripherals.

          Note: Some pins may require pull-up/down resistors. Test with low-power triggers (e.g., buttons) to verify wakeup reliability.

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