buderus-km271_en.yaml

# This is the configuration, I've put on the board.
# If you apply voltage to it, the green LED D! serves as status led2
# usually blinking with around 1 Hz. If you press button USER 1, it will
# toggle green led D2.
# To upload a new firmware, search for the "Fallback Hotspot" WiFi and
# log in with password "Z8zfajgxVvNw". It could take up to a minute for
# the fallack AP to be enabled when not able to connect to the "test"
# wifi network. So, if status is blinking, give it a minute to show up.
substitutions:
  name: "km271-for-friends"

esphome:
  name: "${name}"
  # Automatically add the mac address to the name
  # so you can use a single firmware for all devices
  name_add_mac_suffix: true

  platformio_options:
    upload_speed: 921600
    #board_build.f_flash: 80000000L
    #board_build.partitions: "default_8MB.csv
    #upload_flash_size: "8MB"

  # This will allow for (future) project identification,
  # configuration and updates.
  project:
    name: the78mole.km271-wifi
    version: "1.0"

esp32:
  board: esp32dev
  framework:
    type: arduino

# Enable logging
logger:

# Enable Home Assistant API
api:

ota:
  platform: esphome
#  password: "xxx"

wifi:
#  ssid: "test"
#  password: "testtest"

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Fallback Hotspot"
    password: "Z8zfajgxVvNw"

dashboard_import:
  package_import_url: github://the78mole/esphome_components/components/km271_wifi/km271-for-friends.yaml@main

captive_portal:
#  keep_user_credentials: true

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

external_components:
#  - source:
#      type: local
#      path: my_components/components
#    components: [ km271_wifi ]
  - source: github://the78mole/esphome_components@main
    components: [ km271_wifi ]
 
esp32_improv:
  authorizer: improvble
  authorized_duration: 120s
  status_indicator: led3
  identify_duration: 60s

improv_serial: 


status_led:
  id: ledgn1
  pin: 
    number: GPIO21
    inverted: true

km271_wifi:
  - id: budoil
    uart_id: uart_bus

binary_sensor:
  - platform: gpio
    id: improvble
    name: "USER 2"
    pin:
      number: GPIO27
      inverted: true
      mode:
        input: true
        pullup: true

# Above is all the "give-away hardware suggestion stuff"
# It is the place for cleanup of to reduce flash footprint, like: 
# improv, captive portal, dashboard_import,...)
##################################################################

##################################################################
# Below is the real examle stuff

  - platform: km271_wifi
    # Betriebswerte 1 HC1
    heating_circuit_1_switch_off_optimization:
      name: "HC1 Switch-off Optimization"
    heating_circuit_1_switch_on_optimization:
      name: "HC1 Switch-on Optimization"
    heating_circuit_1_automatic:
      name: "HC1 Automatic"
    heating_circuit_1_ww_priority_processing:
      name: "HC1 Hot Water priority"
    heating_circuit_1_screed_drying:
      name: "HC1 Screed Drying"
    heating_circuit_1_holiday:
      name: "HC1 Holiday"
    heating_circuit_1_antifreeze:
      name: "HC1 Antifreeze"
    heating_circuit_1_manually:
      name: "HC1 Manual"
    # Betriebswerte 1 HC1
    heating_circuit_1_summer:
      name: "HC1 Summer Mode"
    heating_circuit_1_day:
      name: "HC1 Day Mode"
    heating_circuit_1_no_comm_with_rc:
      name: "HC1 No Communication with Remote Controller"
    heating_circuit_1_rc_faulty:
      name: "HC1 Remote Controller Failure"
    heating_circuit_1_flow_sensor_error:
      name: "HC1 Flow Sensor Error"
    heating_circuit_1_max_flow:
      name: "HC1 Maximum Flow Time" #???
    heating_circuit_1_external_fault_input:
      name: "HC1 External Fault Input"
    # Betriebswerte 2 HC2
    heating_circuit_2_switch_off_optimization:
      name: "HC2 Switch-off Optimization"
    heating_circuit_2_switch_on_optimization:
      name: "HC2 Switch-on Optimization"
    heating_circuit_2_automatic:
      name: "HC2 Automatic"
    heating_circuit_2_ww_priority_processing:
      name: "HC2 Hot Water priority"
    heating_circuit_2_screed_drying:
      name: "HC2 Screed Drying"
    heating_circuit_2_holiday:
      name: "HC2 Holiday"
    heating_circuit_2_antifreeze:
      name: "HC2 Antifreeze"
    heating_circuit_2_manually:
      name: "HC2 Manual"
    # Betriebswerte 2 HC1
    heating_circuit_2_summer:
      name: "HC2 Summer Mode"
    heating_circuit_2_day:
      name: "HC2 Day Mode"
    heating_circuit_2_no_comm_with_rc:
      name: "HC2 No Communication with Remote Controller"
    heating_circuit_2_rc_faulty:
      name: "HC2 Remote Controller Failure"
    heating_circuit_2_flow_sensor_error:
      name: "HC2 Flow Sensor Error"
    heating_circuit_2_max_flow:
      name: "HC2 Maximum Flow Time" #???
    heating_circuit_2_external_fault_input:
      name: "HC2 External Fault Input"
    # Betriebswerte 1 DHW
    ww_automatic:
      name: "DHW Automatic"
    ww_disinfection:
      name: "WW Disinfection"
    ww_reload:
      name: "DHW Reload"
    ww_holiday:
      name: "DHW Holiday"
    ww_error_disinfection:
      name: "DHW Disinfektion Error"
    ww_error_sensor:
      name: "DHW Sensor Error"
    ww_error_stays_cold:
      name: "DHW Error DHW Stays cold"
    ww_error_anode:
      name: "DHW Anode failure"
    # Betriebswerte 2 DHW
    ww_loading:
      name: "DHW Loading"
    ww_manually:
      name: "DHW Manual"
    ww_reloading:
      name: "DHW Reloading"
    ww_switch_off_optimization:
      name: "DHW Switch-off Optimization"
    ww_switch_on_optimization:
      name: "DHW Switch-on Optimization"
    ww_day_mode:
      name: "DHW Day Mode"
    ww_post_processing:
      name: "DHW Night Mode"
    ww_priority_processing:
      name: "DHW Priority Switching"
    # Kesselfehler
    error_burner_malfunction:
      name: "FBurner Failure"
    error_boiler_sensor:
      name: "Boiler Sensor Error"
    error_additional_sensor:
      name: "Additional Sensor Error"
    error_boiler_stays_cold:
      name: "Boiler Stays Cold"
    error_exhaust_gas_sensor:
      name: "Exhaust Gas Sensor Error"
    error_exhaust_gas_over_limit:
      name: "FExhaust Gas Over Limit Error"
    error_safety_chain_released:
      name: "Safety Chain Error"
    error_external_disturbance:
      name: "External Disturbances Error"
    # Kesselbetrieb
    boiler_emission_test:
      name: "Boiler Emission Test"
    boiler_1st_stage_operation:
      name: "Boiler Operation 1st Stage"
    boiler_protection:
      name: "Boiler Protection"
    boiler_under_operation:
      name: "Boiler in Operation"
    boiler_performance_free:
      name: "Boiler Performance Free"
    boiler_performance_high:
      name: "Boiler Performance High"
    boiler_2st_stage_operation:
      name: "Boiler Operation 2nd Stage"
    boiler_actuation:
      name: "Burner Control"
  #Alarmstatus
    alarm_exhaust_gas_sensor:
      name: "Exhaust Gas Sensor Alarm"
    alarm_boiler_flow_sensor:
      name: "Boiler Flow Sensor Alarm"
    alarm_burner:
      name: "Burner Alarm"
    alarm_heating_circuit_2_flow_sensor:
      name: "HC2 Flow Sensor Alarm"
  #Other stuff
    load_pump_running:
      name: "Loading Pump Operational"
    circulation_pump_running:
      name: "Circulation Pump Operational"
    solar_pump_lowering:
      name: "Solar Pump Lowering"




output:
  - platform: gpio
    id: led3
    #name: LED3_Yellow
    pin: 
      number: 23
      mode: OUTPUT
      inverted: true
  - platform: gpio
    id: led4
    #name: LED4_Red
    pin: 
      number: 25
      mode: OUTPUT
      inverted: true

button:
  - platform: restart
    name: "KM271-WiFi Restart"
  - platform: template
    name: "KM271 WW-Bereitung Aus"
    on_press:
      - lambda:
          uint8_t command[] = {0x0C, 0x0E, 0x00, 0x65, 0x65, 0x65, 0x65, 0x65};
          budoil->writer.enqueueTelegram(command, 8);
  - platform: template
    name: "KM271 WW-Bereitung Ein"
    on_press:
      - lambda:
          uint8_t command[] = {0x0C, 0x0E, 0x01, 0x65, 0x65, 0x65, 0x65, 0x65};
          budoil->writer.enqueueTelegram(command, 8);
  - platform: template
    name: "KM271 WW-Bereitung Auto"
    on_press:
      - lambda:
          uint8_t command[] = {0x0C, 0x0E, 0x02, 0x65, 0x65, 0x65, 0x65, 0x65};
          budoil->writer.enqueueTelegram(command, 8);


number:
  - platform: km271_wifi
    config_ww_temperature:
      name: "Hot Water Temperature Day"
      mode: slider
    config_frost_switch_temperature:
      name: "Frost Switching Temperature"
      mode: slider

    config_heating_circuit_1_room_target_temperature_night:
      name: "HC1 Target Room Temperature Night"
      mode: slider
    config_heating_circuit_1_room_target_temperature_day:
      name: "HC1 Target Room Temperature Day"
      mode: slider
    config_heating_circuit_1_holiday_target_temperature:
      name: "Holiday Temperature"
      mode: slider
    config_heating_circuit_1_flow_temperature_max:
      name: "HC1 Maximum Heating Circuit Temperature"
      mode: slider
    config_heating_circuit_1_design_temperature:
      name: "HC1 Design Temperature"
      mode: slider
    config_heating_circuit_1_room_temperature_offset:
      name: "HC1 Room Temperature Offset"
      mode: slider
    config_heating_circuit_1_holiday_days:
      name: "HC1 Holiday Days"
      mode: slider

    config_heating_circuit_2_room_target_temperature_night:
      name: "HC2 Target Room Temperature Night"
      mode: slider
    config_heating_circuit_2_room_target_temperature_day:
      name: "HC2 Target Room Temperature Day"
      mode: slider
    config_heating_circuit_2_holiday_target_temperature:
      name: "Holiday Temperaturer"
      mode: slider
    config_heating_circuit_2_flow_temperature_max:
      name: "HC2 Maximum Heating Circuit Temperature"
      mode: slider
    config_heating_circuit_2_design_temperature:
      name: "HC2 Design Temperature"
      mode: slider
    config_heating_circuit_2_room_temperature_offset:
      name: "HC2 Room Temperature Offset"
      mode: slider
    config_heating_circuit_2_holiday_days:
      name: "HC2 Holiday Day"
      mode: slider

select:
  - platform: km271_wifi
    config_ww_operation_mode:
      name: "Hot Water Operating Mode"
    config_ww_circular_pump_interval:
      name: "WHot Water Circulation Pump Interval"

    config_heating_circuit_1_summer_winter_switch_temperature:
      name: "HC1 Summer Winter Changeover Temperature"
    config_heating_circuit_1_operation_mode:
      name: "HC1 Operation Mode"
    config_heating_circuit_1_lowering_type:
      name: "HC1 Lowering Type"
    config_heating_circuit_1_heating_system_type:
      name: "HC1 Heating System"
    config_heating_circuit_1_heating_program:
      name: "HC1 Heating Program"

    config_heating_circuit_2_summer_winter_switch_temperature:
      name: "HC2 Summer Winter Changeover Temperature"
    config_heating_circuit_2_operation_mode:
      name: "HC2 Operation Mode"
    config_heating_circuit_2_lowering_type:
      name: "HC2 Lowering Type"
    config_heating_circuit_2_heating_system_type:
      name: "HC2 Heating System"
    config_heating_circuit_2_heating_program:
      name: "HC2 Heating Program"

sensor:
  - platform: km271_wifi
    heating_circuit_1_flow_target_temperature:
      name: "HC1 Target Flow Temperature"
    heating_circuit_1_flow_temperature:
      name: "HC1 Flow Temperature"
    heating_circuit_1_room_target_temperature:
      name: "HC1 Target Room Temperature"
    heating_circuit_1_room_temperature:
      name: "HC1 Actual Room Temperature"
    heating_circuit_1_pump_power:
      name: "HC1 Pump Power"
    heating_circuit_1_mixer_position:
      name: "HC1 Mixer Position"
    heating_circuit_1_curve_p10:
      name: "HC1 Heating Curve +10 °C"
    heating_circuit_1_curve_0:
      name: "HC1 Heating Curve 0 °C"
    heating_circuit_1_curve_n10:
      name: "HC1 Heating Curve -10 °C"
    heating_circuit_2_flow_target_temperature:
      name: "HC2 Target Flow Temperature"
    heating_circuit_2_flow_temperature:
      name: "HC2 Flow Temperature"
    heating_circuit_2_room_target_temperature:
      name: "HC2 Target Room Temperature"
    heating_circuit_2_room_temperature:
      name: "HC2 Actual Room Temperature"
    heating_circuit_2_pump_power:
      name: "HC2 Pump Power"
    heating_circuit_2_mixer_position:
      name: "HC2 Mixer Position"
    heating_circuit_2_curve_p10:
      name: "HC2 Heating Curve +10 °C"
    heating_circuit_2_curve_0:
      name: "HC2 Heating Curve 0 °C"
    heating_circuit_2_curve_n10:
      name: "HC2 Heating Curve -10 °C"
    ww_target_temperature:
      name: "Hot Water Target Temperature"
    ww_temperature:
      name: "Actual Hot Water temperature"
    boiler_target_temperature:
      name: "Boiler Target Temperature"
    boiler_temperature:
      name: "Boiler Actual Temperature"
    boiler_turn_on_temperature:
      name: "Burner Switch-on Temperature"
    boiler_turn_off_temperature:
      name: "Burner Switch-off Temperature"
    exhaust_gas_temperature:
      name: "Exhaust Gas Temperature"
    outdoor_temperature:
      name: "Outside Temperature"
    attenuated_outdoor_temperature:
      name: "Attenuated Outdoor Temperature"
    boiler_runtime_1:
      name: "Burner Runtime 1"
    boiler_runtime_2:
      name: "Burner Runtime 2"

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

  - platform: adc
    pin: 36
    unit_of_measurement: "V"
    name: "KM217 5V Supply"
    accuracy_decimals: 2
    update_interval: 5s
    attenuation: 6dB
    filters:
      - multiply: 28.1826
      - throttle_average: 60s
      
switch:
  - platform: gpio
    name: LED2_Green
    pin: 
      number: 22
      mode: OUTPUT
      inverted: true

text_sensor:
  - platform: km271_wifi
    firmware_version:
      name: "Firmware Version Control"