Example of input_select being used in a bidirectional manner, both being set by and controlled by an MQTT action in an automation.
+# Example configuration.yaml entry using 'input_select' in an action in an automation
+
+# Define input_select
+input_select:
+ thermostat_mode:
+ name: Thermostat Mode
+ options:
+ - "auto"
+ - "off"
+ - "cool"
+ - "heat"
+ icon: mdi:target
+
+# Automation.
+ # This automation script runs when a value is received via MQTT on retained topic: thermostatMode
+ # It sets the value selector on the GUI. This selector also had its own automation when the value is changed.
+- alias: Set Thermostat Mode Selector
+ trigger:
+ platform: mqtt
+ topic: "thermostatMode"
+ # entity_id: input_select.thermostat_mode
+ action:
+ service: input_select.select_option
+ data_template:
+ entity_id: input_select.thermostat_mode
+ option: '{{ trigger.payload }}'
+
+ # This automation script runs when the thermostat mode selector is changed.
+ # It publishes its value to the same MQTT topic it is also subscribed to.
+- alias: Set Thermostat Mode
+ trigger:
+ platform: state
+ entity_id: input_select.thermostat_mode
+ action:
+ service: mqtt.publish
+ data_template:
+ topic: "thermostatMode"
+ retain: true
+ payload: '{{ states.input_select.thermostat_mode.state }}'
+
+