ESP32 sleep mode: wake up ok on USB power, ko on battery

ESPHome
,
1

Hi all,
T-Energy S3 + magnetic sensor + 18650 battery, used for get MQTT alert on garage open/close and/or twice a day for battery stats.
GPIO12 is the sensor normally open pin.
When the contact is closed, ESP32 sleeps; when I open the contact, it wakes up and it let ESP32 awake until the contact is closed again. So this code work as expected. Below the config:

esphome:
  name: tens3-bascula-sx
  friendly_name: tens3-bascula-sx

esp32:
  board: esp32-s3-devkitc-1
  framework:
    type: arduino
  flash_size: 16MB

# Enable logging
logger:
  level: DEBUG

ota:
- platform: esphome
  password: !secret esphome_secret

web_server:
  port: 80

wifi:
  fast_connect: True
  ssid: "xxx"
  password: "xxx"
  manual_ip:
    static_ip: 192.168.xx
    gateway: 192.168.xx
    subnet: 255.255.xx

mdns:
  disabled: true

captive_portal:

mqtt:
  id: mqtt_client
  broker: 192.168.xx
  port: 1883
  username: mqtt-xx
  password: xxx
  birth_message:
  will_message:
  on_message:
    - topic: tens3-bascula-sx/deep_sleep_mode
      payload: 'OFF'
      then:
        - logger.log: ">>>>>> MQTT received   topic=tens3-bascula-sx/deep_sleep_mode, payload='OFF'"
        - deep_sleep.prevent: deep_sleep_1
    - topic: tens3-bascula-sx/deep_sleep_mode
      payload: 'ON'
      then:
        - logger.log: ">>>>>> MQTT received    topic=tens3-bascula-sx/deep_sleep_mode, payload='ON'" 
        - deep_sleep.enter: deep_sleep_1

deep_sleep:
  id: deep_sleep_1
  run_duration: 5sec
  sleep_duration: 15min
  wakeup_pin:
    number: GPIO12
    allow_other_uses: True
  wakeup_pin_mode: INVERT_WAKEUP

binary_sensor:
  - platform: gpio
    name: BasculaSX
    device_class: garage_door
    pin:
      number: GPIO12
      mode: INPUT_PULLUP
      allow_other_uses: True

sensor:
- platform: adc
  pin: 3
  name: "T3SX Battery Voltage"
  update_interval: 1s
  attenuation: 12db

About the issue: when the ESP is connected to a USB power it works, when it is powered by battery (yes, fully charged battery) it goes to sleep but it never awake then.
Do you think is it something wrong with the esphome config? Or is it the ESP board the problem? I saw other posts about Lilygo boards regarding power management on the net…
Thanks for any help,
-f

2

Are you 100% sure it doesn’t wakes up?
With such a small run time, you’re not guaranteed that wifi will manage to come up, MQTT to be connected, and updates to be sent…

Now, tbh, I tried to do something similar, but never achieved good results with deep sleep, but I would first specify a longer run for tests

3

How you know that.
I expect there is no LED while powered from battery and your code does nothing else than waits 5s ang goes to sleep.

4

Yes:
I see data in MQTT side as well as I can ping ESP32 unit… As you suggested, I started with longer run, then lower the time to a stable one.