esphome/_data/prj_3.yaml

substitutions:
  device_name: prj-3
  dn: prj_3
  sn: P3
  friendly_name: Prj 3
  duct_fan_pin: GPIO14
  duct_fan_name: ${sn} Duct Fan Spd
  duct_fan_tgt_spd_in_name: ${sn} DF Tgt Spd In
  duct_fan_tgt_spd_prj_name: ${sn} DF Tgt Spd Prj
  duct_fan_tgt_spd_out_name: ${sn} DF Tgt Spd Out
  duct_fan_pwmfreq: 5000Hz
  duct_fan_off_spd: "0.0"
  duct_fan_lo_spd: "1.0"
  duct_fan_vent_spd: "50.0"
  duct_fan_hi_spd: "100.0"
  prjpwr_pin: GPIO19
  prjpwr_name: ${sn} Pwr
  dallas_pin: GPIO32
  dallas_in_addr: "0x1F3C01D0756F0928"
  dallas_in_name: ${sn} Temp In
  dallas_prj_addr: "0x873C01D0756D4B28"
  dallas_prj_name: ${sn} Temp Prj
  dallas_out_addr: "0xA901143295610E28"
  dallas_out_name: ${sn} Temp Out
  dallas_update_interval: 30s

globals:
  - id: duct_fan_off_spd_id
    type: float
    initial_value: ${duct_fan_off_spd}
  - id: duct_fan_lo_spd_id
    type: float
    initial_value: ${duct_fan_lo_spd}
  - id: duct_fan_vent_spd_id
    type: float
    initial_value: ${duct_fan_vent_spd}
  - id: duct_fan_hi_spd_id
    type: float
    initial_value: ${duct_fan_hi_spd}

<<: !include .common.yaml
<<: !include .wifi-oss.yaml

esphome:
  name: ${dn}
  platform: ESP32
  board: esp32doit-devkit-v1
  on_boot:
    - priority: 200.0
      then:
        - output.set_level:
            id: duct_fan_output_id
            level: ${duct_fan_vent_spd}%

switch:
  - platform: template
    name: Thermostat On
    id: thermostat_on_id
    optimistic: true

output:
  - platform: ledc
    pin: ${duct_fan_pin}
    id: duct_fan_output_id
    frequency: ${duct_fan_pwmfreq}

fan:
  - platform: speed
    id: duct_fan_spd_id
    output: duct_fan_output_id
    name: ${duct_fan_name}

dallas:
  - pin:
      number: ${dallas_pin}
      mode: INPUT_PULLUP
    update_interval: ${dallas_update_interval}

sensor:
  - platform: dallas
    address: ${dallas_in_addr}
    name: ${dallas_in_name}
    id: dallas_in_id
  - platform: dallas
    address: ${dallas_prj_addr}
    name: ${dallas_prj_name}
    id: dallas_prj_id
  - platform: dallas
    address: ${dallas_out_addr}
    name: ${dallas_out_name}
    id: dallas_out_id

binary_sensor:
  - platform: gpio
    pin: ${prjpwr_pin}
    name: ${prjpwr_name}
    device_class: power
  - platform: homeassistant
    name: "Ventilate House"
    entity_id: input_boolean.ventilate_house
    id: ventilate_house

number:
  - platform: template
    id: duct_fan_tgt_spd_in
    name: ${duct_fan_tgt_spd_in_name}
    optimistic: true
    min_value: ${duct_fan_lo_spd}
    max_value: ${duct_fan_hi_spd}
    step: 1
  - platform: template
    id: duct_fan_tgt_spd_prj
    name: ${duct_fan_tgt_spd_prj_name}
    min_value: ${duct_fan_off_spd}
    max_value: ${duct_fan_hi_spd}
    step: 1
    set_action:
      then:
    lambda: |-
      float lo_temp;
      float hi_temp;
      float curtemp;
      float off_spd;
      float lo_spd;
      float vent_spd;
      float hi_spd;
      float newspd;
      lo_temp = id(thermostat_prj_id).target_temperature_low;
      hi_temp = id(thermostat_prj_id).target_temperature_high;
      curtemp = id(dallas_prj_id).state;
      off_spd = id(duct_fan_off_spd_id);
      lo_spd = id(duct_fan_lo_spd_id);
      vent_spd = id(duct_fan_vent_spd_id);
      hi_spd = id(duct_fan_hi_spd_id);
      ESP_LOGD("fan_speed", "DEBUG Ventilate House: %d", id(ventilate_house).state);
      ESP_LOGD("fan_speed", "DEBUG Current Temp: %f", curtemp);
      ESP_LOGD("fan_speed", "DEBUG Thermostat State: %d", id(thermostat_on_id).state);
      if ((id(ventilate_house).state == false) &&
          ((curtemp < lo_temp) || (id(thermostat_on_id).state == false))) {
        ESP_LOGD("fan_speed", "DEBUG turning off");
        auto call = id(duct_fan_spd_id).turn_off();
        call.perform();
        return off_spd;
      }
      if (std::isnan(curtemp)) {
        ESP_LOGD("fan_speed", "DEBUG current temp unknown. Set spd to vent.");
        newspd = vent_spd;
      } else if (curtemp > hi_temp) {
        ESP_LOGD("fan_speed", "DEBUG curtemp > hi_temp");
        newspd = hi_spd;
        } else if (curtemp < lo_temp) {
        newspd = lo_spd;
      } else {
        // Set newspd to same linear proportion of spd range as current temp is of temp range
        newspd = lo_spd + ((hi_spd - lo_spd) * (curtemp - lo_temp) / (hi_temp - lo_temp));
        ESP_LOGD("fan_speed", "DEBUG New Speed set: %f", newspd);
      }
      if ((id(ventilate_house).state == true) && (newspd < vent_spd)) {
        newspd = vent_spd;
        ESP_LOGD("fan_speed", "DEBUG New Speed changed to Vent Speed: %f", newspd);
      }
      if (newspd < lo_spd) {
        ESP_LOGD("fan_speed", "DEBUG New Speed under lo_spd, turning off");
        auto call = id(duct_fan_spd_id).turn_off();
        call.perform();
        return off_spd;
      }
      ESP_LOGD("fan_speed", "DEBUG Setting fan to newspd: %f", newspd);
      auto call = id(duct_fan_spd_id).turn_on();
      call.set_speed(newspd);
      call.perform();
      return newspd;
  - platform: template
    id: duct_fan_tgt_spd_out
    name: ${duct_fan_tgt_spd_out_name}
    optimistic: true
    min_value: ${duct_fan_off_spd}
    max_value: ${duct_fan_hi_spd}
    step: 1

# Dual-point thermostat
climate:
  - platform: thermostat
    id: thermostat_prj_id
    name: Prj3 Prj
    sensor: dallas_prj_id
    visual:
      min_temperature: 60 °F
      max_temperature: 160 °F
      temperature_step: 1
    default_mode: auto
    default_target_temperature_low: 78 °F
    default_target_temperature_high: 160 °F
    min_cooling_off_time: 60s
    min_cooling_run_time: 60s
    min_heating_off_time: 60s
    min_heating_run_time: 60s
    min_idle_time: 60s
    heat_action:
      - logger.log: "Turning off ${friendly_name} Thermostat"
      - switch.turn_off: thermostat_on_id
    idle_action:
      - logger.log: "Turning on ${friendly_name} Thermostat"
      - switch.turn_on: thermostat_on_id
    cool_action:
      - logger.log: "WARNING: ${friendly_name} Thermostat has hit high temp!"
      - switch.turn_on: thermostat_on_id
      #TODO - provide some kind of warning / action here