Restore from mqtt on boot

ESPHome
1

i tried to search for this but failed

basicly i’m building a rain gauge and i want to recover the total rain count and monthly rain count on boot so that it does not start over after a reboot

ideal i wanted to use some form of flash to store it, and i think that would last many years as flash write would only be needed when it rains, during dry time nothing would change so a write would not be needed

my code so far: esphome: name: vejrstation platform: ESP8266 board: nodemcuv2 esp826 - Pastebin.com

any ideas?

2

here
Description of how it works.

3

yeah, but i’m not sure if that would include the rain gauge part of my code

and its only the rain gauge part that has to survive powercycle(powerloss)

4

Would it be an option to just send a signal whenever a specific amount water passed and leave the interpretation to homeassistant?

5

at the house and winter/fall has begun with the big storms

but yeah, letting HA keep score with the rain could also be an option, its a no rush project as i also need to figure a way to provide power to the weather station outside

and since its 500 meters from the coast i also need to consider salt in the air and what nasty stuff that can do to electronics