ESPHome Bluetooth Proxy for Meshtastic Node w/Pin

esphome.yaml

esphome:
  name: bluetooth-proxy
  friendly_name: Bluetooth Proxy

esp32:
  board: esp32dev
  framework:
    type: esp-idf
  
esp32_ble:
  io_capability: keyboard_only

logger:

# Enable Home Assistant API
api:
  encryption:
    key: "<...>"

ota:
  - platform: esphome
    password: "<...>"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Bluetooth-Proxy Fallback Hotspot"
    password: "<...>"

ble_client:
  - mac_address: <MAC ADDRESS>
    id: ble_itag

    # Let Home Assistant initiate the connection
    auto_connect: false
    
    # When connected force the BLE connection to be encrypted
    on_connect:
      then:
        - logger.log:
            format: "Connected to radio"
            level: INFO
        - lambda: |-
            esphome::ble_client::BLEClient* client = id(ble_itag);
            esp_ble_set_encryption(client->get_remote_bda(), ESP_BLE_SEC_ENCRYPT_MITM);
            
    # After encryption is set, the device will ask for the pin
    on_passkey_request:
      then:
        - logger.log:
            format: "Authenticating with passkey"
            level: INFO
        - ble_client.passkey_reply:
            id: ble_itag
            passkey: <PASSKEY>

esp32_ble_tracker:
  scan_parameters:
    interval: 2000ms
    window: 1000ms

bluetooth_proxy:
  active: true
  connection_slots: 3

captive_portal: