main.yaml

#
# Floor Heating Actuator Controller
# ESPHome PACKAGE configuration file
# See https://esphome.io/components/packages/
#

# Package available substitutions
substitutions:
  # relay names -- these help you understand in HomeAssistant which relay is 
  # connected to which floor heating zone, without having to remember which 
  # GPIO pin corresponds to which zone
  relay1_name: "Relay1"
  relay2_name: "Relay2"
  relay3_name: "Relay3"
  relay4_name: "Relay4"
  relay5_name: "Relay5"
  relay6_name: "Relay6"
  relay7_name: "Relay7"
  relay8_name: "Relay8"
  # secrets -- these allow the ESPHome device to "talk" to your Wifi and
  # your HomeAssistant instance
  encryption_key: "your_encryption_key_here"
  ota_password: "your_ota_password_here"
  wifi_ssid: "your_wifi_ssid_here"
  wifi_password: "your_wifi_password_here"
  wifi_ap_password: "your_wifi_ap_password_here"
  # logging -- for extra debugging
  #syslog_server: "your_syslog_server_ip_here"
  #syslog_port: "514"  # default syslog port is 514, but you can change it if your server uses a different port

# You might want to override this:
esphome:
  name: floorheatingactuatorcontroller
  friendly_name: FloorHeatingActuatorController
  comment: "Relay board controlling under-floor heating pipes"

# Board
esp32:
  board: esp32dev
  framework:
    type: esp-idf

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: ${encryption_key}

# Wireless Connectivity:
ota:
  - platform: esphome
    password: ${ota_password}
wifi:
  ssid: ${wifi_ssid}
  password: ${wifi_password}

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Floorheatingactuatorcontroller"
    password: ${wifi_ap_password}

# Extra sensors:
text_sensor:
  - platform: wifi_info
    ip_address:
      name: IP
      icon: mdi:ip-network-outline
    mac_address:
      name: MAC
      icon: mdi:network-outline
  - platform: version
    name: "ESPHome Version"
  # Expose Uptime
  - platform: template
    name: "Uptime Human Readable"
    id: uptime_human
    icon: mdi:clock-start

# Captive Portal is the portal created by this node when Wifi connection fails
captive_portal:
    
# Webserver is exposed under regular use
web_server:
  port: 80
  # Disable OTA updates for web_server only
  # Captive portal will still have OTA access since it auto-loads the web server OTA platform
  ota: false

# SPI bus configuration
# MOSI is not required because the slave device does not accept any input
#  SPI	MOSI    MISO    SCLK    CS
# VSPI	GPIO23	GPIO19	GPIO18	GPIO5
# HSPI	GPIO13	GPIO12	GPIO14	GPIO15
spi:
  miso_pin: GPIO16
  clk_pin: GPIO17

# Temperature sensors
sensor:
  # Temperature sensor on SPI, see https://esphome.io/components/sensor/max6675/
  - platform: max6675
    id: heating_pipe_sensor
    name: "Heating pipe Temperature"
    cs_pin: GPIO15
    update_interval: 60s

  # WiFi information sensors
  - platform: wifi_signal
    name: Signal Strength
    update_interval: 60s

  - platform: dht
    id: ambient_sensor
    pin: GPIO5
    model: DHT11
    temperature:
      name: "Ambient Temperature"
    humidity:
      name: "Ambient Humidity"
    update_interval: 60s

  # Uptime Sensor
  - platform: uptime
    name: "Uptime"
    id: uptime_sensor
    update_interval: 360s
    on_raw_value:
      then:
        - text_sensor.template.publish:
            id: uptime_human
            state: !lambda |-
              int seconds = round(id(uptime_sensor).raw_state);
              int days = seconds / (24 * 3600);
              seconds = seconds % (24 * 3600);
              int hours = seconds / 3600;
              seconds = seconds % 3600;
              int minutes = seconds /  60;
              seconds = seconds % 60;
              return (
                (days ? to_string(days) + "d " : "") +
                (hours ? to_string(hours) + "h " : "") +
                (minutes ? to_string(minutes) + "m " : "") +
                (to_string(seconds) + "s")
              ).c_str();

# Status LED: indicates WiFi/API connection status
# GPIO23 LED will be ON when connected, blinking when disconnected
status_led:
  pin: GPIO23

# Main relays controlling the floor heating zones
switch:
  # relays use GPIOS 12-14, 25-27, 32-33 (GPIO23 is used for status LED)
  - platform: gpio
    name: ${relay1_name}
    pin: GPIO13
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    name: ${relay2_name}
    pin: GPIO12
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    name: ${relay3_name}
    pin: GPIO14
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    name: ${relay4_name}
    pin: GPIO27
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    name: ${relay5_name}
    pin: GPIO26
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    name: ${relay6_name}
    pin: GPIO25
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    name: ${relay7_name}
    pin: GPIO33
    restore_mode: RESTORE_DEFAULT_OFF
  - platform: gpio
    name: ${relay8_name}
    pin: GPIO32
    restore_mode: RESTORE_DEFAULT_OFF

#udp:
  # syslog server
#  addresses: ${syslog_server}

time:
  # sync time with HomeAssistant, which in turn can be synced with an NTP server;
  # a good time sync is not critical for this project but it can be useful for debugging
  # when reading the logs
  - platform: homeassistant
    id: homeassistant_time

#syslog:
  # emit syslog messages to server defined under "udp"
  #port: ${syslog_port}