esphome-thermostat.yaml

substitutions:
  name: esphome-web-1dbf28
  friendly_name: c3pico-therm-1dbf28
  remote_sensor_entity_id: sensor.average_of_temperature_sensors

esphome:
  name: ${name}
  friendly_name: ${friendly_name}
  min_version: 2024.6.0
  name_add_mac_suffix: false
  project:
    name: esphome.web
    version: dev
  platformio_options:
    board_build.flash_mode: dio
  on_boot:
    priority: -100.0
    then:
      - component.update: proxy_sensor

esp32:
  board: esp32-c3-devkitm-1
  framework:
    type: esp-idf

# logger, api, ota, improv_serial, wifi, and web_server are in common.yaml
packages:
  common: !include ../common/common.yaml

wifi:
  output_power: 13
# output_power: 13 seems good for the lolin c3 pico

i2c:
  sda: 8
  scl: 10
  scan: true
  id: bus_a
  frequency: 400kHz

text_sensor:
  - platform: template
    id: message
    name: "Temperature data source"
    lambda: |-
      if ( id(connection_status).state && id(remote_sensor).state && (std::to_string(id(remote_sensor).state) != "nan") ) {
        return {"HA sensor"};
      } else {
        return {"onboard sensor"};
      }
    entity_category: diagnostic
    disabled_by_default: true
    update_interval: 60s
# the if condition in the lambda above is probably *NOT* a good test if the sensor is connected and returning valid data.

button:
  - platform: restart
    name: "Restart Device"
    disabled_by_default: true

switch:
  - platform: gpio
    pin: 
      number: 5
      mode:
        output: true
        pullup: true
    name: "relay switch"
    id: relay_switch

  - platform: template
    id: onoff_switch
    lambda: |-
      if (tcc1->mode != 0) {
        return true;
      } else {
        return false;
      }
    turn_on_action:
      then:
        - logger.log: "onoff switch ON"
        - climate.control:
            id: tcc1
            mode: HEAT
    turn_off_action:
      then:
        - logger.log: "onoff switch OFF"
        - climate.control: 
            id: tcc1
            mode: "OFF"

binary_sensor:
  - platform: status
    name: "Connection status"
    id: connection_status
    disabled_by_default: true
  - platform: gpio
    pin:
      number: 4
      mode:
        input: true
        pullup: true
    id: increase_temp
    on_press:
      then:
        - logger.log: "increase temp"            
        - climate.control: 
            id: tcc1
            target_temperature: !lambda return id(tcc1).target_temperature + 1.0;
        
  - platform: gpio
    pin:
      number: 0
      mode:
        input: true
        pullup: true
    id: decrease_temp
    on_press:
      then:
        - logger.log: "decrease temp"
        - climate.control: 
            id: tcc1
            target_temperature: !lambda return id(tcc1).target_temperature - 1.0;
  
  - platform: gpio
    pin:
      number: 1
      inverted: true
      mode:
        input: true
        pullup: true
    id: onoff_button
    on_press:
      - switch.toggle: onoff_switch
  
  - platform: gpio
    pin:
      number: 2
      inverted: true
      mode:
        input: true
        pullup: true
    id: cycle_button
    on_multi_click:
      - timing:
          - ON for at most 0.5s
          - OFF for at least 0.2s
        then:
          - script.execute: page_toggle_script
      - timing:
          - ON for at least 1.5s
        then:
          - script.execute: preset_cycle_script

script:
  - id: preset_cycle_script
    then:
      - climate.control:
          id: tcc1
          preset: !lambda |-
            switch (id(tcc1).preset.value()) {
              case CLIMATE_PRESET_HOME:
                return CLIMATE_PRESET_SLEEP;
              case CLIMATE_PRESET_SLEEP:
                return CLIMATE_PRESET_AWAY;
              case CLIMATE_PRESET_AWAY:
                return CLIMATE_PRESET_ECO;
              case CLIMATE_PRESET_ECO:
                return CLIMATE_PRESET_HOME;
              default:
                return CLIMATE_PRESET_HOME;
            }
  - id: page_toggle_script
    then:
      - display.page.show_next: my_display
      - component.update: my_display

sensor:  
  - platform: shtcx
    id: shtcx_sensor
    address: 0x70
    temperature:
      id: onboard_sensor
      name: "Temperature"
    humidity:
      id: shtcx_hum
      name: "Humidity"
    update_interval: 60s
  - platform: homeassistant
    id: remote_sensor
    unit_of_measurement: "°C"
    device_class: "temperature"
    state_class: "measurement"
    accuracy_decimals: 3
    entity_id: ${remote_sensor_entity_id}
  - platform: template
    id: proxy_sensor
    lambda: |-
      if( id(connection_status).state && id(remote_sensor).state && (std::to_string(id(remote_sensor).state) != "nan") ) {
        return id(remote_sensor).state;
      } else {
        return id(onboard_sensor).state;
      }
    update_interval: 60s

# the if condition in the lambda above is probably *NOT* a good test if the sensor is connected and returning valid data.

climate:
  - platform: thermostat
    name: "Thermostat Climate Controller"
    id: tcc1
    visual:
      min_temperature: 4
    sensor: proxy_sensor
    min_heating_off_time: 60s
    min_heating_run_time: 120s
    min_idle_time: 30s
    heat_action:
      - switch.turn_on: relay_switch
    idle_action:
      - switch.turn_off: relay_switch
    default_preset: HOME
    on_boot_restore_from: memory
    preset:
      - name: HOME
        default_target_temperature_low: 20
        mode: heat
      - name: SLEEP
        default_target_temperature_low: 17.5
        mode: heat
      - name: AWAY
        default_target_temperature_low: 10
        mode: heat
      - name: ECO
        default_target_temperature_low: 16
        mode: heat

font:
  - file:
      type: gfonts
      family: "Roboto"
    id: myfont
    size: 14
  - file:
      type: gfonts
      family: "Ultra"
    id: mylargefont
    size: 36

time:
  - platform: sntp
    timezone: "America/Los_Angeles"
    id: time1

display:
  - platform: ssd1306_i2c
    model: "SSD1306 128x64"
    address: 0x3C
    id: my_display
    pages:
      - id: page1
        lambda: |-
          int l = 14;

          std::string mymode = (tcc1->mode == 0) ? "OFF" : "ON";
          std::string myaction = "";
          if(tcc1->action==0) {myaction="off";}
          if(tcc1->action==3) {myaction="heating";}
          if(tcc1->action==4) {myaction="idle";}

          it.printf(0, 0, id(myfont), "%s", mymode.c_str());
          it.printf(it.get_width(), 0, id(myfont), TextAlign::TOP_RIGHT, "%s", myaction.c_str());
          
          it.printf(0, l*1, id(myfont), "set");
          it.printf(it.get_width(), l*1, id(myfont), TextAlign::RIGHT, "%.1f F", id(tcc1).target_temperature * (9.0/5.0) + 32.0);

          it.printf(0, l*2, id(myfont), "current");
          it.printf(it.get_width(), l*2, id(myfont), TextAlign::RIGHT, "%.1f F", id(tcc1).current_temperature * (9.0/5.0) + 32.0);

          it.printf(0, l*3, id(myfont), "preset");
          it.printf(it.get_width(), l*3, id(myfont), TextAlign::RIGHT, "%s", esphome::climate::climate_preset_to_string(id(tcc1).preset.value()));
      - id: page2
        lambda: |-
          it.printf(it.get_width(), 0, id(myfont), TextAlign::TOP_RIGHT, "set %.1f", id(tcc1).target_temperature * (9.0/5.0) + 32.0);
          it.printf(it.get_width()/2, it.get_height()-6, id(mylargefont), TextAlign::BOTTOM_CENTER, "%.1f°F", id(tcc1).current_temperature * (9.0/5.0) + 32.0);
          it.printf(it.get_width()/2, it.get_height(), id(myfont), TextAlign::BOTTOM_CENTER, "currently");
      - id: page3
        lambda: |-
          it.strftime(it.get_width()/2, it.get_height()/2, id(mylargefont), TextAlign::CENTER, "%l:%M", id(time1).now());
          it.strftime(it.get_width(), it.get_height(), id(myfont), TextAlign::BOTTOM_RIGHT, "%P", id(time1).now());