esphome-configs/mcu-pow-2.yaml

substitutions:
  device: pow-2
  name: POW 2
  comment: "DEV"
  update_interval: 10s
  
esphome:
  name: mcu-${device}
  friendly_name: ${name}
  comment: ${comment}
  on_boot: # Set the initial state of the template switch to the actual relay state. This will NOT change the state.
    priority: 250.0 # Wait until WiFi is connected to allow the sensor some time to settle
    then:
      - if:
          condition:
            lambda: 'return id(v_sensor).state > 10;'
          then:
            - switch.turn_on: relay_1
          else:
            - switch.turn_off: relay_1

esp32:
  board: nodemcu-32s
  framework:
    type: esp-idf

interval:
  - interval: 30s
    then:
      if:
        condition:
          wifi.connected:
        then:
          - light.turn_on: wifi_status_led
        else:
          - light.turn_off: wifi_status_led

packages:
  common: !include common/common.yaml

uart:
  rx_pin: 16
  baud_rate: 4800
  parity: EVEN

binary_sensor:
  - platform: gpio
    pin: 0
    id: reset
    internal: true
    filters:
      - invert:
      - delayed_off: 10ms
    on_click:
      - max_length: 350ms # short press to toggle the relay
        then:
          switch.toggle: relay_1
      - min_length: 360ms # long press to cycle display info
        max_length: 3s
        then:
          - if:
              condition:
                binary_sensor.is_on: page
              then:
                binary_sensor.template.publish:
                  id: page
                  state: OFF
              else:
                binary_sensor.template.publish:
                  id: page
                  state: ON
  - platform: template # this is a fake sensor to tell the screen which info to show on display
    id: page
    publish_initial_state: true
    internal: true
  - platform: template
    name: Load
    id: load_on
    lambda: |-
      if (isnan(id(w_sensor).state)) {
        return {};
      } else if (id(w_sensor).state > 4) {
        // Running
        return true;
      } else {
        // Not running
        return false;
      }

display:
  platform: tm1621
  id: tm1621_display
  cs_pin: 25
  data_pin: 14
  read_pin: 26
  write_pin: 27
  lambda: |-
    if (id(page).state) {
      it.display_voltage(true);
      it.display_kwh(false);
      it.printf(0, "%.1f", id(v_sensor).state);
      it.printf(1, "%.1f", id(a_sensor).state);
    } else {  
      it.display_voltage(false);
      it.display_kwh(true);
      it.printf(0, "%.1f", id(wh_sensor).state);
      it.printf(1, "%.1f", id(w_sensor).state);
    }

light:
  - platform: monochromatic
    id: switch_led
    output: led
    internal: True
  - platform: status_led
    id: wifi_status_led
    internal: True
    pin:
      number: 5
      inverted: True

output:
  - platform: ledc
    id: led
    pin:
      number: 18
      inverted: True

sensor:
  - platform: cse7766
    current:
      name: Current
      id: a_sensor
      filters:
        - throttle_average: ${update_interval}
    voltage:
      name: Voltage
      id: v_sensor
      filters:
        - throttle_average: ${update_interval}
    power:
      name: Power
      id: w_sensor
      filters:
        - throttle_average: ${update_interval}
      on_value_range:
        - above: 4.0
          then:
            - light.turn_on: switch_led
        - below: 3.0
          then:
            - light.turn_off: switch_led
    energy:
      name: Energy"
      id: wh_sensor
      filters:
        - throttle_average: ${update_interval}

  - platform: total_daily_energy
    name: Total Daily Energy
    power_id: w_sensor
    filters:
      - multiply: 0.001
    unit_of_measurement: kWh

  - platform: template
    name: Power Factor
    device_class: power_factor
    id: power_factor
    lambda: return id(w_sensor).state / id(v_sensor).state / id(a_sensor).state;

switch:
  - platform: template
    name: Relay
    optimistic: true
    id: relay_1
    turn_off_action:
      - switch.turn_on: relay_off
    turn_on_action:
      - switch.turn_on: relay_on
  - platform: gpio
    restore_mode: ALWAYS_OFF
    internal: true
    id: relay_off
    pin: 4
    on_turn_on:
      - delay: 500ms
      - switch.turn_off: relay_off # bi-stable relay so no need to keep on
      - light.turn_off: switch_led
    interlock: [relay_on]
  - platform: gpio
    restore_mode: ALWAYS_OFF
    internal: true
    id: relay_on
    pin: 2
    on_turn_on:
      - delay: 500ms
      - switch.turn_off: relay_on  # bi-stable relay so no need to keep on
      - light.turn_on: switch_led
    interlock: [relay_off]

time:
  - platform: homeassistant
    id: ha_time
    timezone: Europe/Bratislava