buderus-km271.yaml

esphome:
  name: buderus-km271
  platform: ESP32
  board: esp32dev

# Enable logging
logger:

# Enable Home Assistant API
api:

ota:
  password: "put-your-ota-passphrase-here"  # Should be auto generated, when device is first created

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

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: buderus-km271.local
    password: "put-your-captive-portal-passphrase-here"   # Should be auto generated, when device is first created

captive_portal:

uart:
  id: uart_bus
  tx_pin: GPIO2
  rx_pin: GPIO4
  baud_rate: 2400

external_components:
  - source: github://the78mole/esphome_components@main
    components: [ km271_wifi ]
      
km271_wifi:
  - id: budoil
    uart_id: uart_bus

switch:
  - platform: gpio
    name: LED1_Green
    pin: 
      number: 21
      mode: OUTPUT
      inverted: true
  - platform: gpio
    name: LED2_Green
    pin: 
      number: 22
      mode: OUTPUT
      inverted: true
  - platform: gpio
    name: LED3_Yellow
    pin: 
      number: 23
      mode: OUTPUT
      inverted: true
  - platform: gpio
    name: LED4_Red
    pin: 
      number: 25
      mode: OUTPUT
      inverted: true

binary_sensor:
  - platform: km271_wifi
    # Betriebswerte 1 HK1
    heating_circuit_1_switch_off_optimization:
      name: "HK1 Ausschaltoptimierung"
    heating_circuit_1_switch_on_optimization:
      name: "HK1 Einschaltoptimierung"
    heating_circuit_1_automatic:
      name: "HK1 Automatik"
    heating_circuit_1_ww_priority_processing:
      name: "HK1 Warmwasservorrang"
    heating_circuit_1_screed_drying:
      name: "HK1 Estrichtrocknung"
    heating_circuit_1_holiday:
      name: "HK1 Ferien"
    heating_circuit_1_antifreeze:
      name: "HK1 Frostschutz"
    heating_circuit_1_manually:
      name: "HK1 Manuell"
    # Betriebswerte 2 HK1
    heating_circuit_1_summer:
      name: "HK1 Sommer-Modus"
    heating_circuit_1_day:
      name: "HK1 Tag-Modus"
    heating_circuit_1_no_comm_with_rc:
      name: "HK1 Keine Kommunikation mit FB"
    heating_circuit_1_rc_faulty:
      name: "HK1 FB fehlerhaft"
    heating_circuit_1_flow_sensor_error:
      name: "HK1 Fehler Vorlauffuehler"
    heating_circuit_1_max_flow:
      name: "HK1 Maximaler Vorlauf"
    heating_circuit_1_external_fault_input:
      name: "HK1 Externer Stoereingang"
    # Betriebswerte 1 WW
    ww_automatic:
      name: "WW Automatik"
    ww_disinfection:
      name: "WW Desinfektion"
    ww_reload:
      name: "WW Nachladung"
    ww_holiday:
      name: "WW Ferien"
    ww_error_disinfection:
      name: "WW Fehler Desinfektion"
    ww_error_sensor:
      name: "WW Fehler Fuehler"
    ww_error_stays_cold:
      name: "WW Fehler WW bleibt kalt"
    ww_error_anode:
      name: "WW Fehler Anode"
    # Betriebswerte 2 WW
    ww_loading:
      name: "WW Laden"
    ww_manually:
      name: "WW Manuell"
    ww_reloading:
      name: "WW Nachladen"
    ww_switch_off_optimization:
      name: "WW Ausschaltoptimierung"
    ww_switch_on_optimization:
      name: "WW Einschaltoptimierung"
    ww_day_mode:
      name: "WW Tag Modus"
    ww_post_processing:
      name: "WW Nachbereitung"
    ww_priority_processing:
      name: "WW Vorrangschaltung"
    # Kesselfehler
    error_burner_malfunction:
      name: "Fehler Brennerstoerung"
    error_boiler_sensor:
      name: "Fehler Kesselfuehler"
    error_additional_sensor:
      name: "Fehler Zusatzfuehler"
    error_boiler_stays_cold:
      name: "Fehler Kessel bleibt kalt"
    error_exhaust_gas_sensor:
      name: "Fehler Abgasfuehler"
    error_exhaust_gas_over_limit:
      name: "Fehler Abgas ueber Grenzwert"
    error_safety_chain_released:
      name: "Fehler Sicherungskette ausgeloest"
    error_external_disturbance:
      name: "Fehler Externe Stoerung"
    # Kesselbetrieb
    boiler_emission_test:
      name: "Kessel Abgastest"
    boiler_1st_stage_operation:
      name: "Kessel Betrieb 1.Stufe"
    boiler_protection:
      name: "Kessel Schutz"
    boiler_under_operation:
      name: "Kessel unter Betrieb"
    boiler_performance_free:
      name: "Kessel Leistung frei"
    boiler_performance_high:
      name: "Kessel Leistung hoch"
    boiler_2st_stage_operation:
      name: "Kessel Betrieb 2.Stufe"
    boiler_actuation:
      name: "Brenneransteuerung"
  #Alarmstatus
    alarm_exhaust_gas_sensor:
      name: "Alarm Abgasfuehler"
    alarm_boiler_flow_sensor:
      name: "Alarm Kesselvorlauffuehler"
    alarm_burner:
      name: "Alarm Brenner"
    alarm_heating_circuit_2_flow_sensor:
      name: "Alarm HK2 Vorlauffuehler"
  #Other stuff
    load_pump_running:
      name: "Ladepumpenbetrieb"
    circulation_pump_running:
      name: "Zirkulationspumpenbetrieb"
    solar_pump_lowering:
      name: "Solarpumpe Absenkung"

number:

select:

sensor:
  - platform: km271_wifi
    heating_circuit_1_flow_target_temperature:
      name: "HK1 Vorlaufsolltemperatur"
    heating_circuit_1_flow_temperature:
      name: "HK1 Vorlaufisttemperatur"
    heating_circuit_1_room_target_temperature:
      name: "HK1 Raumsolltemperatur"
    heating_circuit_1_room_temperature:
      name: "HK1 Raumisttemperatur"
    heating_circuit_1_pump_power:
      name: "HK1 Pumpenleistung"
    heating_circuit_1_mixer_position:
      name: "HK1 Mischerstellung"
    heating_circuit_1_curve_p10:
      name: "HK1 Heizkurve +10 °C"
    heating_circuit_1_curve_0:
      name: "HK1 Heizkurve 0 °C"
    heating_circuit_1_curve_n10:
      name: "HK1 Heizkurve -10 °C"
    ww_target_temperature:
      name: "Warmwassersolltemperatur"
    ww_temperature:
      name: "Warmwasseristtemperatur"
    boiler_target_temperature:
      name: "Kesselvorlaufsolltemperatur"
    boiler_temperature:
      name: "Kesselvorlaufisttemperatur"
    boiler_turn_on_temperature:
      name: "Brennereinschalttemperatur"
    boiler_turn_off_temperature:
      name: "Brennerausschalttemperatur"
    exhaust_gas_temperature:
      name: "Abgastemperatur"
    outdoor_temperature:
      name: "Aussentemperatur"
    attenuated_outdoor_temperature:
      name: "Gedaempfte Aussentemperatur"
    boiler_runtime_1:
      name: "Brennerlaufzeit 1"
    boiler_runtime_2:
      name: "Brennerlaufzeit 2"


  - platform: wifi_signal
    name: "KM217 WiFi Signal Sensor"
    update_interval: 60s

text_sensor:
  - platform: km271_wifi
    firmware_version:
      name: "Firmwareversion Steuerung"