#############################################
#############################################
# Nissan Leaf 12V Battery Monitor 
# Monitoring the status of a vehicle 12V battery with 
# an esp8266 (D1 Mini).  It will obviously only
# transmit when the vehicle is within wifi range. 
# Voltage is measured with a resistor voltage divider
# into the analogue GPIO on the esp8266.
# https://zorruno.com/2022/vehicle-12v-battery-monitoring/
##############################################
# zorruno 2022-09-31 V1 Untested
# zorruno 2024-06-02 V2 YAML Tidyups
#############################################
#############################################

#############################################
# Variable Substitutions
# Give this a useful name & description here
# and change values accordingly
#############################################
substitutions:
  devicename: "esp-leafbat2"
  friendly_name: "Nissan Leaf 12V Battery Monitor"
  description_comment: "Nissan Leaf 12V Battery Monitor (when home)"

  #if NOT using a secrets file, just replace these with the passwords etc in speech marks
  api_key: !secret esp-leafbat_api_key #unfortunately you can't use substitutions in secrets names
  ota_pass: !secret esp-leafbat_ota_pass #unfortunately you can't use substitutions in secrets names
  #update_time: 30s #update time for for temp sensors etc

  wifi_ssid: !secret wifi_ssid
  wifi_pass: !secret wifi_password
  #Add these if we are giving it a static ip, or remove them in the Wifi section
  static_ip_address: !secret esp-leafbat_static_ip
  static_ip_gateway: !secret esp-leafbat_gateway
  static_ip_subnet: !secret esp-leafbat_subnet

  mqtt_server: !secret mqtt_server
  mqtt_username: !secret mqtt_username
  mqtt_password: !secret mqtt_password
  mqtt_topic: "esphome/esp-leafbat2" #main topic for the mqtt server, call it what you like

  web_server_username: !secret web_server_username
  web_server_password:  !secret web_server_password

  fallback_ap_ssid: "Esp-Leafbat2 Fallback Hotspot"
  fallback_ap_password: !secret fallback_ap_password




#############################################
# ESPHome
#############################################  
esphome:
  name: ${devicename}
  comment: ${description_comment} #appears on the esphome page in HA

########################################    
# Specific board for ESPHome device
########################################    
esp8266:
  board: d1_mini

#############################################    
# ESPHome Logging Enable
#############################################  
logger:

########################################    
# Enable the Home Assistant API
########################################  
api:
  encryption:
    key: ${api_key}

########################################    
# Enable Over the Air Update Capability
# Safe mode will detect boot loops
########################################  
ota:
  safe_mode: true
  password: ${ota_pass}

########################################    
# Use Wifi 
# (credentials are in secrets file)
########################################  
wifi:
  ssid: ${wifi_ssid}
  password: ${wifi_password}
  # Details for fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: ${fallback_ap_ssid}
    password: ${fallback_ap_password}
  # Static IP (for lower power/quicker on time)
  manual_ip:
    static_ip: ${static_ip_address}
    gateway: ${static_ip_gateway}
    subnet: ${static_ip_subnet}

#############################################    
# Fallback captive portal
#############################################   
captive_portal:

########################################    
# Web Portal for display and monitoring
########################################   
web_server:
  port: 80
  auth:
    username: ${web_server_username}
    password: ${web_server_password}
    
########################################    
# MQTT Monitoring
########################################   
mqtt:
  broker: ${mqtt_server}
  topic_prefix: ${mqtt_topic}
  username: ${mqtt_username}
  password: ${mqtt_password}
  #
  # Availability Topic
  #birth_message:
  #  topic: esphome/esp-leafbat2/availability
  #  payload: online
  #will_message:
  #  topic: esphome/esp-leafbat2/availability
  #  payload: offline
  # A way to prevent deep sleep using MQTT command
  on_message:
    - topic: viewroad-commands/leafbat2/deepsleep
      payload: 'ON'
      then:
        - deep_sleep.prevent: deep_sleep_1
    - topic: viewroad-commands/leafbat2/deepsleep
      payload: 'ON'
      then:
        - deep_sleep.enter: deep_sleep_1

########################################    
# Deep Sleep
########################################   
deep_sleep:
  run_duration: 20s
  sleep_duration: 10min
  id: deep_sleep_1
  
#############################################  
#############################################
# MAIN SENSORS
#############################################
#############################################  
sensor:
  # Quality of Wifi in dBm
  - platform: wifi_signal
    name: "WiFi Signal"
    update_interval: 10s
    retain: true
  # Analog sensor for voltage reading (A0)
  - platform: adc
    pin: A0
    name: "Battery Voltage"
    update_interval: 10s
    retain: true
    filters:
      - multiply: 18.52 # trial and error calc/measure
      - calibrate_linear:
        - 5.99 -> 6.0
        - 11.98 -> 11.99
        - 16.98 -> 16.98

#name: "Battery Voltage"
# Optional variables:
#retain: true