Cannot Compile ESPNow Packet Transport (similar to simple example from docs)

ESPHome
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1

I am trying to get ESPNow working and I've run into some weird error message I cannot get past, yet. The ESPHome editor red-underlines the whole packet_trasport section saying "No sensors or binary sensors to encrypt" on the consumer device yaml (which, correctly, does not have any sensors to provide).

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I've implemented my stuff close to the Simple Example listed here.

Provider device (this one works):

sensor:
  - platform: adc
    pin: GPIO35
    name: "Battery Voltage"
    id: battery_voltage
    accuracy_decimals: 3

binary_sensor:
  - platform: gpio
    pin:
      number: GPIO32
      mode: INPUT_PULLUP
    name: "Door"
    id: door
    device_class: door
    filters:
      - delayed_on: 20ms

espnow:
  id: espnow_component
  peers:
    - 00:00:00:00:00:FF # consumer's MAC removed for posting in forum

packet_transport:
  - platform: espnow
    id: transport_unicast
    espnow_id: espnow_component
    peer_address: 00:00:00:00:00:FF # consumer's MAC removed for posting in forum
    encryption:
      key: "my key goes here"
    binary_sensors: 
      - door
    sensors:
      - battery_voltage

Consumer device (this one shows the error):

espnow:
  peers:
    - FF:00:00:00:00:00 # provider's MAC removed for posting in forum

packet_transport:
  - platform: espnow
    encryption: "my key goes here"
    providers:
      - name: mailbox
      
binary_sensor:
  - platform: packet_transport
    provider: mailbox
    remote_id: door
    internal: true
    name: "Mailbox Door"
    device_class: door

sensor:
  - platform: packet_transport
    provider: mailbox
    remote_id: battery_voltage
    name: "Mailbox Battery Voltage"
    internal: true

When I run "validate" on the device, it also complains about the same issue. In the example, the consumer does not have any sensors to encrypt... what am I missing here?

2

I think I just figured it out. It's because I defined the encryption tag within the packet_transport section, proper. It cannot be there on the consumer device. On the consumer, it should be nested under one of the provider blocks like this:

packet_transport:
  - platform: espnow
    providers:
      - name: mailbox
        encryption: "my key goes here"

Once I did that, the errors went away and I was able to compile.

EDIT

BTW, I found that here in the docs:

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