tank_minder.yaml

# -------------------------------------
# ---- Implemented on D1 mini on side of external water tank ----
# ---- v1.3
# -------------------------------------
substitutions:
  devicename: tank_minder

esphome:
  name: ${devicename}
  platform: ESP8266
  board: esp01_1m

wifi:
  fast_connect: true
  networks:
  - ssid: !secret wifi_ssid
    password: !secret wifi_password
    hidden: True
  manual_ip:
    static_ip: !secret ip_tank_minder
    gateway: !secret ip_gateway
    subnet: 255.255.255.0
  domain: .homelan
  ap: # Enable fallback hotspot (captive portal) in case wifi connection fails
    ssid: "${devicename} Hotspot"
    password: !secret password

captive_portal:

# Enable logging
logger:

# Enable Home Assistant API
api:
  reboot_timeout: 0s # Dont reboot..
  encryption:
    key: !secret encryption_key

ota:
  password: !secret password

web_server:
  port: 80
  auth:
    username: admin
    password: !secret password


i2c:
  sda: GPIO4
  scl: GPIO5
  id: bus_a
#  scan: True

ads1115: #https://esphome.io/components/sensor/ads1115.html
  - address: 0x48

dallas:
  - pin: GPIO12

# Used a '5V DC Pressure Transducer Sensor 0-1.2 MPa Oil Fuel Diesel Gas Water Air' = 174psi - 60PSI would prbably be ok but use a 100PSI just in case
sensor:
  - platform: ads1115
    id: adclevel
    multiplexer: 'A0_GND'
#    gain: 6.144 #(measures up to 6.144V)
#    gain: 4.096 #(measures up to 4.096V) # Full hose pressure is around 3.1v (100PSI)
    gain: 2.048 #(measures up to 2.048V) # Full hose pressure is just shy of 2v (1.2MPa)
#    gain: 1.024 #(measures up to 1.024V)
#    gain: 0.512 #(measures up to 0.512V)
#    gain: 0.256 #(measures up to 0.256V)
    name: "${devicename} Level"
    icon: "mdi:cup-water"
    accuracy_decimals: 0
    unit_of_measurement: "L"
#    update_interval: 2min
    update_interval: 30s
    filters:
    - calibrate_linear: # https://esphome.io/components/sensor/index.html#sensor-filters
#      - 0.490 -> 0.0 # Empty Value     (100PSI)
#      - 0.848 -> 3000.0 # Full Value   (100PSI)
#      - 0.542 -> 0.0 # Empty Value     (1.2MPa)
      - 0.560 -> 0.0 # Empty Value     (1.2MPa)
      - 0.605 -> 3000.0 # Full Value   (1.2MPa)
#    - median:
#        window_size: 10
#        send_every: 5

  - platform: template
    name: "${devicename} Status"
    id: tankPer
    update_interval: 2min
    unit_of_measurement: '%'
    icon: "mdi:water-percent"
    accuracy_decimals: 0
    lambda: |-
      return ((id(adclevel).state / 3000) * 100.00);
    on_value_range:
        - above: 75.0
          then:
            - if:
                condition:
                  - switch.is_off: override
                then:
                  - switch.turn_off: relay
                  - logger.log: "The tank is full enough!"


  - platform: dallas
    address: 0xDE3C01D607548128
    name: "${devicename} Temperature"

  - platform: wifi_signal
    name: ${devicename} wifi signal
    update_interval: 60s


switch:
  - platform: template
    name: "${devicename} Fill Override"
    id: override
    optimistic: true

  - platform: gpio
    name: "${devicename} Fill Relay"
    id: relay
    pin:
      number: GPIO13
      inverted: false
    on_turn_on:
      then:
      - if:
          condition:
            - lambda: 'return id(tankPer).state > 60;'
            - switch.is_off: override
          then:
            - switch.turn_off: relay
            - logger.log: "The tank is full enough!"
            - delay: 2s
            - switch.turn_off: relay
          else:
            - delay: 1h
            - switch.turn_off: relay
            - logger.log: "Relay was on for an hour!"