Hello,
I’m getting a strange issue with my autonomous water level for my well based on ESP32 and esphome.
I’m able to set the deepsleep mode on it, and it will work for few hours (like 12 hours in my last test), however it randomly cannot wake from deepsleep. In this case I have to remove the battery and and it again and it will go back for work for some hours etc…
In this case the ESP32 will blink a lot on the led positoned between G0 and G2.
This is a draw of the installation :
And there is the yaml code I use
esphome:
name: water-level-2
friendly_name: water-level-2
esp32:
board: esp32dev
framework:
type: arduino
# Enable logging
logger:
# Enable Home Assistant API
api:
encryption:
key: "*********"
ota:
password: "*******"
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Water-Level-2 Fallback Hotspot"
password: ""******"
captive_portal:
deep_sleep:
run_duration: 10min
sleep_duration: 30min
binary_sensor:
- platform: status
name: "Water-Level Status"
sensor:
- platform: ultrasonic
trigger_pin: 25
echo_pin: 26
name: "puit hauteur"
id: measured_distance
accuracy_decimals: 4
update_interval: 30s
- platform: uptime
name: "Water-Level Uptime"
update_interval: 60s
- platform: wifi_signal
name: "Water-Level WiFi Signal"
update_interval: 120s
- platform: adc
pin: GPIO35
id : "ADCV"
name: "Water-Level Battery V"
update_interval: 60s
attenuation: 11db
filters:
- multiply: 1.292
- platform: template
name: "Water-Level Battery %"
unit_of_measurement: '%'
update_interval: 60s
lambda: |-
return ((id(ADCV).state -3.30) /0.82 * 100.00);
switch:
- platform: restart
name: "Water-Level Restart"
The ADC part do not appear in my draw because I have removed it to see if the issue is coming from here, but I still got the issue without the voltage divider.
I have tried to keep all the circuit inside my house (ie without solar panel input) and I also got the same issue (and battery was ~3,80V).
I have also tried to use the DC booster to 5V to power only the sensor HC SR04 and use a voltage regulator at 3.3V to power the ESP32, but also got the same issue.
I don’t have any issue without the deepsleep, but of course I’m getting a battery empty at some point
I have replaced the ESP32 with a new one, and the same for TP4056 but got the same error also.
I am on the last version of HA and ESP Home firmware.
I don’t really know what is happening, I wish you can help me on this 
Thanks!
