ferraris_meter_multi.yaml

# This is an example configuration for an ESPHome firmware to measure the
# current power and overall energy consumption using a Ferraris electricity
# meter

# In this variant, the configuration to observe multiple Ferraris electricity
# meters with a single ESP microcontroller is demonstrated.

# generic configuration (to be adapted)
esphome:
  name: ferraris-meter
  friendly_name: Stromzähler
  project:
    name: jensrossbach.ferraris_meter
    version: 1.4.1

# example ESP8266 firmware (can be replaced by appropriate configuration)
esp8266:
  board: esp01_1m

# include Ferraris component (mandatory)
external_components:
  - source: github://jensrossbach/esphome-ferraris-meter@v1.4.1
    components: [ferraris]

# enable logging (optional)
logger:
  level: INFO

# enable Home Assistant API (mandatory if used with Home Assistant, alternatively configure MQTT)
api:
  encryption:
    key: !secret ha_api_key

# enable over-the-air updates (recommended)
ota:
  - platform: esphome
    password: !secret ota_password

# enable Wi-Fi (mandatory)
wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # enable fallback hotspot (captive portal) in case Wi-Fi connection fails
  ap:
    ssid: Ferraris Meter Fallback Hotspot
    password: !secret fallback_hs_password

# needed for fallback hotspot (see above)
captive_portal:

# Ferraris component (mandatory)
ferraris:
  - id: ferraris_meter_1
    digital_input: GPIO4
    rotations_per_kwh: 75
    energy_start_value: last_energy_value_1
  - id: ferraris_meter_1
    digital_input: GPIO5
    rotations_per_kwh: 100
    energy_start_value: last_energy_value_2

# numeric sensors
sensor:
  - platform: ferraris
    ferraris_id: ferraris_meter_1
    # sensor for current power consumption of first electricity meter
    power_consumption:
      name: Momentanverbrauch 1
    # sensor for energy meter reading of first electricity meter
    energy_meter:
      name: Verbrauchszähler 1
  - platform: ferraris
    ferraris_id: ferraris_meter_2
    # sensor for current power consumption of second electricity meter
    power_consumption:
      name: Momentanverbrauch 2
    # sensor for energy meter reading of second electricity meter
    energy_meter:
      name: Verbrauchszähler 2
  # sensor for Wi-Fi signal strength
  - platform: wifi_signal
    name: Wi-Fi Signal
    update_interval: 60s

# binary sensors
binary_sensor:
  - platform: ferraris
    ferraris_id: ferraris_meter_1
    # sensor for indicating detected rotation on first elecricity meter during calibration mode
    rotation_indicator:
      name: Umdrehungsindikator 1
  - platform: ferraris
    ferraris_id: ferraris_meter_2
    # sensor for indicating detected rotation on second elecricity meter during calibration mode
    rotation_indicator:
      name: Umdrehungsindikator 2
  # sensor for wireless connection status
  - platform: status
    name: Status

# text sensors
text_sensor:
  - platform: wifi_info
    # sensor providing the IP address of the ESP microcontroller
    ip_address:
      name: IP Adresse

# number components
number:
  # import entity holding last energy meter reading of first elecricity meter from Home Assistant
  - platform: homeassistant
    id: last_energy_value_1
    entity_id: input_number.stromzaehler_1_letzter_wert
  # import entity holding last energy meter reading of second elecricity meter from Home Assistant
  - platform: homeassistant
    id: last_energy_value_2
    entity_id: input_number.stromzaehler_2_letzter_wert
  # number used to manually overwrite the energy meter of first electricity meter
  - platform: template
    id: target_energy_value_1
    name: Manueller Zählerstand 1
    icon: mdi:counter
    unit_of_measurement: kWh
    device_class: energy
    entity_category: config
    mode: box
    optimistic: true
    min_value: 0
    max_value: 1000000
    step: 0.01
  # number used to manually overwrite the energy meter of second electricity meter
  - platform: template
    id: target_energy_value_2
    name: Manueller Zählerstand 2
    icon: mdi:counter
    unit_of_measurement: kWh
    device_class: energy
    entity_category: config
    mode: box
    optimistic: true
    min_value: 0
    max_value: 1000000
    step: 0.01

# switch components
switch:
  - platform: ferraris
    ferraris_id: ferraris_meter_1
    # switch used to activate or deactivate the calibration mode for first electricity meter
    calibration_mode:
      name: Kalibrierungsmodus 1
  - platform: ferraris
    ferraris_id: ferraris_meter_2
    # switch used to activate or deactivate the calibration mode for second electricity meter
    calibration_mode:
      name: Kalibrierungsmodus 2

# button components
button:
  # button used to trigger the manual overwriting of the energy meter of first electricity meter
  - platform: template
    name: Verbrauchszähler 1 überschreiben
    icon: mdi:download
    entity_category: config
    on_press:
      - ferraris.set_energy_meter:
          id: ferraris_meter_1
          value: !lambda |-
            float val = id(target_energy_value_1).state;
            return (val >= 0) ? val : 0;
  # button used to trigger the manual overwriting of the energy meter of second electricity meter
  - platform: template
    name: Verbrauchszähler 2 überschreiben
    icon: mdi:download
    entity_category: config
    on_press:
      - ferraris.set_energy_meter:
          id: ferraris_meter_2
          value: !lambda |-
            float val = id(target_energy_value_2).state;
            return (val >= 0) ? val : 0;