diy_watermeter.yml

substitutions:
  name: diy-watermeter
  friendly_name: Diy Watermeter
  
esphome:
  name: diy-watermeter
  platform: ESP8266
  board: nodemcuv2

wifi:
  ssid: !secret wifi
  password: !secret wifi_pass

    
  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Diy Watermeter Fallback Hotspot"
    password: !secret ap_pass

captive_portal:

# esp8266 gpio layout
# D0
# D1 - I2C - ADS1115 SCL / Former pulse counter
# D2 - I2C - ADS1115 SDA
  # ADS1115
  # Channel A0 - Incoming
  # Channel A1 - After Filter (Tank)
  # Channel A2 - Household
  # Channel A3 - Spare
# D3 
# D4
# D5 - Water Pulse Counter / Former Relay
# D6 - Relay
# D7 - Relay
# D8
# RX
# TX
# A0

i2c:
  sda: D2
  scl: D1
  scan: true
  id: bus_a
  
ads1115:
  - address: 0x48
  
sensor:
  - platform: ads1115
    multiplexer: 'A0_GND'
    gain: 6.144 
    name: "A0 Voltage - Incoming Pressure Transmitter"
    device_class: voltage
    state_class: "measurement"
    update_interval: 30s
    
  - platform: ads1115
    multiplexer: 'A0_GND'
    gain: 6.144 
    name: "Main Water pressure - Bar"
    id: main_water_supply_bar
    device_class: pressure
    state_class: "measurement"
    icon: "mdi:gauge"
    accuracy_decimals: 2
    filters:
      - calibrate_linear:
            - 0.633 -> 0.34  
            - 0.862 -> 1.03
            - 1.11 -> 1.72
            - 1.47 -> 2.75
            - 1.63 -> 3.47
            - 2.02 -> 4.48
            - 2.01 -> 4.68
    unit_of_measurement: bar
    update_interval: 30s    
    
  - platform: ads1115
    multiplexer: 'A0_GND'
    gain: 6.144 
    name: "Main Water pressure - Psi"
    id: main_water_supply_psi
    device_class: pressure
    state_class: "measurement"
    icon: "mdi:gauge"
    accuracy_decimals: 2
    filters:
      - calibrate_linear:
            - 0.633 -> 5.0  
            - 0.862 -> 15.0
            - 1.11 -> 25.0
            - 1.47 -> 40.0
            - 1.63 -> 50.0
            - 2.02 -> 65.0
            - 2.01 -> 68.0
    unit_of_measurement: psi
    update_interval: 30s    
    
    
  - platform: ads1115
    multiplexer: 'A1_GND'
    gain: 6.144 
    name: "A1 Voltage - Tank Transmitter"
    device_class: voltage
    state_class: "measurement"
    id: a1_voltage
    update_interval: 30s    
    
    
  - platform: ads1115
    multiplexer: 'A1_GND'
    gain: 6.144 
    name: "Tank Water supply pressure - Bar"
    id: tank_water_supply_bar
    device_class: pressure
    state_class: "measurement"
    icon: "mdi:gauge"
    accuracy_decimals: 2
    filters:
      - calibrate_linear:
            - 0.633 -> 0.34  
            - 0.862 -> 1.03
            - 1.11 -> 1.72
            - 1.47 -> 2.75
            - 1.63 -> 3.47
            - 2.02 -> 4.48
            - 2.01 -> 4.68
    unit_of_measurement: bar
    update_interval: 30s    
    
  - platform: ads1115
    multiplexer: 'A1_GND'
    gain: 6.144 
    name: "Tank Water supply pressure - Psi"
    id: tank_water_supply_psi
    device_class: pressure
    state_class: "measurement"
    icon: "mdi:gauge"
    accuracy_decimals: 2
    filters:
      - calibrate_linear:
            - 0.633 -> 5.0  
            - 0.862 -> 15.0
            - 1.11 -> 25.0
            - 1.47 -> 40.0
            - 1.63 -> 50.0
            - 2.02 -> 65.0
            - 2.01 -> 68.0
    unit_of_measurement: psi
    update_interval: 30s    
    
    
  - platform: ads1115
    multiplexer: 'A2_GND'
    gain: 6.144 
    name: "A2 Voltage - Household Transmitter"
    device_class: voltage
    state_class: "measurement"
    id: a2_voltage
    update_interval: 30s
    
  - platform: ads1115
    multiplexer: 'A2_GND'
    gain: 6.144 
    name: "Household supply water pressure - Bar"
    id: household_water_supply_bar
    device_class: pressure
    state_class: "measurement"
    icon: "mdi:gauge"
    accuracy_decimals: 2
    filters:
      - calibrate_linear:
            - 0.633 -> 0.34  
            - 0.862 -> 1.03
            - 1.11 -> 1.72
            - 1.47 -> 2.75
            - 1.63 -> 3.47
            - 2.02 -> 4.48
            - 2.01 -> 4.68
    unit_of_measurement: bar
    update_interval: 30s  
    
  - platform: ads1115
    multiplexer: 'A2_GND'
    gain: 6.144 
    name: "Household supply water pressure - Psi"
    id: household_water_supply_psi
    device_class: pressure
    state_class: "measurement"
    icon: "mdi:gauge"
    accuracy_decimals: 2
    filters:
      - calibrate_linear:
            - 0.633 -> 5.0  
            - 0.862 -> 15.0
            - 1.11 -> 25.0
            - 1.47 -> 40.0
            - 1.63 -> 50.0
            - 2.02 -> 65.0
            - 2.01 -> 68.0
    unit_of_measurement: psi
    update_interval: 30s    

  - platform: ads1115
    multiplexer: 'A3_GND'
    gain: 6.144 
    name: "A3 - Voltage Ref"
    device_class: voltage
    state_class: "measurement"
    id: a3_voltage
    update_interval: 30s
    

  - platform: template
    name: "Water Filter DeltaP - bar"
    device_class: pressure
    state_class: "measurement"
    lambda: return ( id(main_water_supply_bar).state - id(tank_water_supply_bar).state );
    unit_of_measurement: bar
    update_interval: 30s    
    
  - platform: template
    name: "Water Filter DeltaP - psi"
    device_class: pressure
    state_class: "measurement"
    lambda: return ( id(main_water_supply_psi).state - id(tank_water_supply_psi).state );
    unit_of_measurement: psi
    update_interval: 30s    

  - platform: pulse_counter
    pin: D5
    unit_of_measurement: 'L/min'
    accuracy_decimals: 1
    update_interval: 60s
    name: 'Water Meter House'
    filters:
    - lambda: return (x / 27.0);  
    
    total:
      unit_of_measurement: 'L'
      name: 'Water Meter Total'
      accuracy_decimals: 1
      filters:
      - lambda: return (x / 27.0);

  - platform: wifi_signal
    name: "${friendly_name} Wifi "
    update_interval: 60s

switch:
  - platform: gpio
    pin: D6
    name: "Backyard Sprinkler Valve (NC)"  
    id: backyardsprinkler_valve    

  - platform: gpio
    pin: D7
    name: "Water Main Natural Flow to House Valve (NO)"  
    id: watermain_naturalflow_valve 

  - platform: restart
    name: "${friendly_name} Restart"
    

text_sensor:
  - platform: version
    name: ${friendly_name} ESPHome Version
    

# Enable logging
logger:

web_server:
  port: 80

# Enable Home Assistant API
api:
  reboot_timeout : 0s
    
ota: