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QUERY · ISSUE

Bug: Deep Sleep Wake-up Issue on ESP32-C3

openby stefan21-techopened 2025-03-01updated 2025-05-22
bugport-esp32

Port, board and/or hardware

ESP32 PORT, ESP32-C3 Super Mini

MicroPython version

Micropython 1.24.1

Reproduction

Title: Bug: Deep Sleep Wake-up Issue on ESP32-C3

Description:
I am experiencing an issue with the deep sleep wake-up functionality on the ESP32-C3 using MicroPython. The device does not wake up as expected when a GPIO pin changes from low to high.

Steps to Reproduce:

  1. Flash the latest version of MicroPython on an ESP32-C3.
  2. Use the following code to enter deep sleep and wake up on a GPIO pin change:
    import machine
    import esp32
    import time
    
    WAKEUP_GPIO_PIN = 0
    LED_GPIO_PIN = 8
    
    pin = machine.Pin(WAKEUP_GPIO_PIN, machine.Pin.IN, machine.Pin.PULL_UP)
    esp32.wake_on_ext0(pin=pin, level=esp32.WAKEUP_ANY_HIGH)
    
    wake_reason = machine.wake_reason()
    
    if wake_reason == machine.WAKEUP_EXT0:
        print("Woke up from deep sleep")
        machine.Pin(LED_GPIO_PIN, machine.Pin.OUT).value(1)
        time.sleep(1)
        machine.Pin(LED_GPIO_PIN, machine.Pin.OUT).value(0)
    else:
        print("Entering deep sleep")
        time.sleep(2)
        machine.deepsleep()
    
    

Expected behaviour

Wake up with change on GPIO0.

Observed behaviour

Does not wake up.

Additional Information

No, I've provided everything above.

Code of Conduct

Yes, I agree

CANDIDATE · PULL REQUEST

esp32 : fix for #7158 - machine.deepsleep() not behaving as expected

mergedby PBrunotopened 2023-10-23updated 2023-10-31
port-esp32

This PR fixes machine.deepsleep() waking up the board after a delay d, for example when a machine.lightsleep(d) call was issued previously. This is because previous wake-sources remain active, whereas machine.deepsleep() shall put the board to sleep forever as per the
machine.deepsleep documentation

See #7158 for more details on : issue description, reproduction steps and fix implementation.

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