car.yaml

substitutions:
  devicename: battery_voltage
  devicename_friendly: Car Battery
  ip_address: 192.168.1.219


esphome:
  name: ${devicename}
  platform: ESP8266
  board: d1_mini
  
wifi:
  networks:
    ssid: "HomeAssistant"
    password: "MyPassword"
    priority: 1
    
  #use_address: ${devicename}.local

  power_save_mode: none  

  reboot_timeout: 15min

  manual_ip:
    
    static_ip: ${ip_address}
    subnet: 255.255.255.0
    gateway: 192.168.1.1
    dns1: 192.168.1.1

  ap:
    ssid: "${devicename} Hotspot"
    password: "AnotherPassword"

  fast_connect: true     


captive_portal:    

logger:
  baud_rate: 0
  level: VERBOSE

ota:

deep_sleep:
  run_duration: 20s
  sleep_duration: 60min
  id: battery_deep_sleep

mqtt:
  broker: 192.168.1.XXX
  username: !secret mqtt_username
  password: !secret mqtt_password
  
  on_message:
    - topic: deep_sleep/ota_mode
      payload: 'ON'
      then:
        - deep_sleep.prevent: battery_deep_sleep
  
    
    - topic: deep_sleep/ota_mode
      payload: 'OFF'
      then:
        - deep_sleep.enter: battery_deep_sleep



binary_sensor:

  - platform: status
    name: ${devicename} network status
    id: ${devicename}_network_status
  

sensor:

  - platform: adc
    pin: A0
    name: "Voltage"
    update_interval: 10s
    filters:
      - multiply: 14.5583
    
    
  - platform: wifi_signal
    name: ${devicename} WiFi Signal
    update_interval: 60s
  
  - platform: uptime
    name: ${devicename} Uptime
    unit_of_measurement: h
    filters:
      - lambda: return int((x + 1800.0) / 3600.0);
  
switch:

  - platform: restart
    name: ${devicename} Restart
    id: restart_${devicename} 
  

text_sensor:

  - platform: version
    name: ${devicename} ESPHome version

  - platform: wifi_info
    ip_address:
      name: ${devicename} IP Address
    ssid:
      name: ${devicename} Connected SSID 
    bssid:
      name: ${devicename} BSSID