QUERY · ISSUE

ESP32 - EN pin when in Deep Sleep State

openby hpereira98opened 2020-05-24updated 2020-05-28

port-esp32

When my board is in deep sleep state ( machine.deepsleep() ), when I press the EN button the machine.reset_cause() returns the machine.PWRON_RESET instead of the machine.DEEPSLEEP_RESET. Is this supposed to happen? How can I get the machine.DEEPSLEEP_RESET by pressing a button?

I tried the embedded EN button and connecting a physical button to the EN pin.

CANDIDATE · 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:

Flash the latest version of MicroPython on an ESP32-C3.

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