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 · 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.

Assessment

Q Qwen · high

The query (issue #6071) is about detecting the reset cause when waking from deep sleep via the EN pin - specifically that pressing EN returns PWRON_RESET instead of DEEPSLEEP_RESET. The candidate PR (#12782) fixes a different issue (#7158) where machine.deepsleep() would wake up after a delay due to previous wake sources not being cleared. While both involve ESP32 deep sleep and machine module, they address different problems: #6071 is about reset cause detection on EN pin wake-up, while #12782 is about preventing unintended wake-ups from stale wake sources. The PR does not resolve the EN pin reset cause detection issue.

Suggested action

Keep both items open as they address different problems. The PR may provide useful context for deep sleep implementation but does not solve the reset cause detection issue in the query.

ESP32 - EN pin when in Deep Sleep State

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

Keyboard