sensor:
  - platform: template
    id: template_temperature1
    lambda: |-
      if (millis() > 10000) {
        return 0.6;
      } else {
        return 0.0;
      }
  - platform: template
    id: template_temperature2
    lambda: |-
      if (millis() > 20000) {
        return 0.8;
      } else {
        return 0.0;
      }
  - platform: combination
    type: kalman
    name: Kalman-filtered temperature
    process_std_dev: 0.00139
    sources:
      - source: template_temperature1
        error: !lambda "return 0.4 + std::abs(x - 25) * 0.023;"
      - source: template_temperature2
        error: 1.5
  - platform: combination
    type: linear
    name: Linearly combined temperatures
    sources:
      - source: template_temperature1
        coeffecient: !lambda "return 0.4 + std::abs(x - 25) * 0.023;"
      - source: template_temperature2
        coeffecient: 1.5
  - platform: combination
    type: max
    name: Max of combined temperatures
    sources:
      - source: template_temperature1
      - source: template_temperature2
  - platform: combination
    type: mean
    name: Mean of combined temperatures
    sources:
      - source: template_temperature1
      - source: template_temperature2
  - platform: combination
    type: median
    name: Median of combined temperatures
    sources:
      - source: template_temperature1
      - source: template_temperature2
  - platform: combination
    type: min
    name: Min of combined temperatures
    sources:
      - source: template_temperature1
      - source: template_temperature2
  - platform: combination
    type: most_recently_updated
    name: Most recently updated of combined temperatures
    sources:
      - source: template_temperature1
      - source: template_temperature2
  - platform: combination
    type: range
    name: Range of combined temperatures
    sources:
      - source: template_temperature1
      - source: template_temperature2
  - platform: combination
    type: sum
    name: Sum of combined temperatures
    sources:
      - source: template_temperature1
      - source: template_temperature2