yysonoff_dual_r2.yaml

# ------------------------------
# ---- Sonoff Dual R2 ----
# ------------------------------
#GPIO0	Button 0 on header
#GPIO3	Serial Rx and Optional Sensor
#GPIO1	Serial Tx and Optional Sensor
#GPIO5	Relay 2 (RED LED)
#GPIO9	Button 1 on header
#GPIO10	Button on Case
#GPIO12	Relay 1 (GREEN LED)
#GPIO13	Blue Led (Inverted)

esphome:
  name: sonoff_dual
  platform: ESP8266
  board: esp01_1m

wifi:
  #power_save_mode: light # power reduced from ?.?w to ?.?w
  #fast_connect: true
  networks:
  - ssid: !secret wifi_ssid
    password: !secret wifi_password
    hidden: True
  manual_ip:
    static_ip: !secret ip_sonoff_dual
    gateway: !secret ip_gateway
    subnet: 255.255.255.0
  ap: # Enable fallback hotspot (captive portal) in case wifi connection fails
    ssid: "TankMinder Fallback Hotspot"
    password: !secret password

captive_portal:

mqtt:
  broker: !secret mqtt_host
  username: !secret mqtt_username
  password: !secret mqtt_password
  reboot_timeout: 0s # Dont reboot..

# Enable logging
logger:
  baud_rate: 0 # So we can use the RX and TX pins

# Enable Home Assistant API
api:
  password: !secret password
  reboot_timeout: 0s # Dont reboot..

ota:
  password: !secret password

binary_sensor:
  - platform: gpio
    pin:
      number: GPIO0
      mode: INPUT_PULLUP
      inverted: True
    name: "Water Tank Pump On" # Button 0
    device_class: moisture
    filters:
      - delayed_on: 10ms
      - delayed_off: 10ms
      
  - platform: gpio
    pin:
      number: GPIO9 # Button 1
      mode: INPUT_PULLUP
      inverted: True
    name: "Water Tank Rain Water"
    filters:
      - delayed_on: 10ms
      - delayed_off: 10ms

  - platform: gpio
    pin:
      number: GPIO10 # Case Button
      mode: INPUT_PULLUP
      inverted: True
    name: "Water Tank Mains Water"
    filters:
      - delayed_on: 10ms
      - delayed_off: 10ms

  - platform: gpio
    pin:
      number: GPIO13
      mode: INPUT_PULLUP
      inverted: True
    name: "Water Tank Warning" # Blue LED
    device_class: safety
    filters:
      - delayed_on: 10ms
      - delayed_off: 10ms


# https://blog.lesman.com/2012/01/27/best-location-for-installing-ultrasonic-level-transducer/
sensor:

  - platform: ultrasonic
    trigger_pin: GPIO2
    echo_pin: GPIO5
    name: "Level"
    update_interval: 3s
    pulse_time: 20us
#    filters:
#    - offset: 2.0
#    - multiply: 1.2
#    update_interval: 6h
    filters:
    - lambda: return 3000 - ((x / 1.5) * 3000.0);
    unit_of_measurement: "L"
    
    




switch:
  - platform: gpio
    name: "Water Tank Relay 1" #Green Led
    pin: GPIO12
    id: relay1
  - platform: gpio
    name: "Water Tank Relay 2" #Red Led
    pin: GPIO05
    id: relay2