Battery_level attribute from ESP

@Angel wrote:

Hello everyone!
I’m learning my way into ESPhome and HA and I just found something I’d like to do.
Is there a way to make the ESP report it’s battery level so it shows up on the battery section of the config --> devices --> dashboard the same way a cellphone battery does?

I have tried the following yaml, but it didn’t seem to make any effect on the dashboard.

sensor:
  - platform: adc
    pin: VCC
    id: "battery_level"
    name: "esp.2.vcc"

Any idea?

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