Remember esp's global variables upon reflashing

[snow mason]

Is it possible to program my esp8266 with esphome so that when flashing a new update, the global variables persist?

I control an espresso machine and I'm counting the number of shots pulled but it resets to 0 (and will reset to 0 at every reset). I also have sliders to fine tune the desired parameters that also get reset to their default position

here's my relevant snippet of code

globals:
  - id: shots_pulled
    type: int
    restore_value: yes
    initial_value: '0'

number:
  - platform: template # Home assistant widget to set target pressure 
    id: target_pressure
    name: Target Pressure
    min_value: 0
    max_value: 2
    initial_value: 0.95
    step: 0.01
    optimistic: true
    restore_value: true
    unit_of_measurement: "bar"
    icon: "mdi:kettle-alert"

  - platform: template # Home assistant widget to set target temperature 
    id: target_temperature
    name: Target Temperature
    min_value: 70
    max_value: 100
    initial_value: 85
    step: 1
    optimistic: true
    restore_value: true
    unit_of_measurement: "°C"
    icon: "mdi:thermometer-check"

actually I didn't set restore_from_flash, which may or may not be why it happened

no, same behavior with restore_from_flash set to true

[lone elm]

on the home assistant side you could use a utility meter helper to count increases. you can set it so it knows that the source entity occasionally resets.
then you can reset that helper on demand if/when you want to. then you track/automate from the helper.

[snow mason]

Ah yeah that makes sense. What about for my number entities. The user needs to set a desired temperature. Can home assistant remember it, and then my esp try to fetch it if it's been reset?

Thank you for the fast answer, the counter being sorted is already pretty nice

oh also I see that not only there's a esphome discord server, I'm already a member on it. Is this a question best asked there?

[lone elm]

yeah you will probably get some more info there as they will know more. but as a home assistant solution if the settings can be set in HA then you could create a scene with the entities in it before you update. then restore the scene once complete? it would add an extra step to your update process and it feels messy though

but definitely ask over on esphome discord. there are probably tricks that i dont know about

[snow mason]

in that case I'd probably just update the initial values in the .yaml before updating

but that's pretty hacky, I don't love it

but thank you, if nothing else the counter thing will come in handy