Add humidity-controlled fan blueprint with hysteresis and safety features

Includes support for multiple fans, configurable thresholds with hysteresis
to prevent flip-flopping, and runaway prevention mechanisms with max runtime
and cooldown periods. Optimized for Zooz ZSE11 and compatible humidity sensors.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

humidity-controlled-fan.yaml

@@ -0,0 +1,163 @@
+blueprint:
+  name: Humidity Controlled Fan with Hysteresis
+  description: >
+    Controls fans based on humidity sensor readings with hysteresis to prevent flip-flopping
+    and safety mechanisms to prevent runaway operation. Supports multiple fans and the Zooz ZSE11
+    humidity sensor or any compatible humidity sensor.
+  domain: automation
+  input:
+    fans:
+      name: Fan Entities
+      description: One or more fans to control based on humidity
+      selector:
+        entity:
+          domain: fan
+          multiple: true
+
+    humidity_sensor:
+      name: Humidity Sensor
+      description: Humidity sensor entity (e.g., Zooz ZSE11 or compatible sensor)
+      selector:
+        entity:
+          domain: sensor
+          device_class: humidity
+
+    humidity_threshold:
+      name: Humidity Threshold (%)
+      description: Base humidity percentage threshold
+      default: 60
+      selector:
+        number:
+          min: 30
+          max: 90
+          unit_of_measurement: "%"
+
+    hysteresis_high:
+      name: High Hysteresis (%)
+      description: Amount above threshold to turn fans ON (prevents rapid cycling)
+      default: 5
+      selector:
+        number:
+          min: 1
+          max: 15
+          unit_of_measurement: "%"
+
+    hysteresis_low:
+      name: Low Hysteresis (%)
+      description: Amount below threshold to turn fans OFF (prevents rapid cycling)
+      default: 3
+      selector:
+        number:
+          min: 1
+          max: 15
+          unit_of_measurement: "%"
+
+    turn_on_delay:
+      name: Turn On Delay
+      description: Delay before turning fans on (avoids brief humidity spikes)
+      default: 30
+      selector:
+        number:
+          min: 0
+          max: 300
+          unit_of_measurement: seconds
+
+    max_runtime_minutes:
+      name: Maximum Runtime (minutes)
+      description: Maximum time fans can run continuously before forced shutdown
+      default: 120
+      selector:
+        number:
+          min: 15
+          max: 480
+          unit_of_measurement: minutes
+
+    cooldown_minutes:
+      name: Cooldown Period (minutes)
+      description: Minimum time between fan cycles to prevent runaway operation
+      default: 10
+      selector:
+        number:
+          min: 2
+          max: 60
+          unit_of_measurement: minutes
+
+mode: restart
+
+trigger:
+  - platform: state
+    entity_id: !input humidity_sensor
+    attribute: 
+  - platform: state
+    entity_id: !input humidity_sensor
+
+variables:
+  fans_entities: !input fans
+  humidity_sensor: !input humidity_sensor
+  base_threshold: !input humidity_threshold
+  high_hysteresis: !input hysteresis_high
+  low_hysteresis: !input hysteresis_low
+  turn_on_threshold: "{{ base_threshold + high_hysteresis }}"
+  turn_off_threshold: "{{ base_threshold - low_hysteresis }}"
+  current_humidity: "{{ states(humidity_sensor) | float(0) }}"
+  any_fan_on: >
+    {{ expand(fans_entities) | selectattr('state', 'eq', 'on') | list | length > 0 }}
+  max_runtime_seconds: "{{ (max_runtime_minutes | int) * 60 }}"
+
+action:
+  - choose:
+      # Turn fans ON when humidity exceeds upper threshold
+      - conditions:
+          - condition: template
+            value_template: >
+              {{ current_humidity > turn_on_threshold }}
+          - condition: template
+            value_template: >
+              {{ not any_fan_on }}
+          - condition: template
+            value_template: >
+              {{ states(humidity_sensor) not in ['unavailable', 'unknown'] }}
+        sequence:
+          - delay:
+              seconds: !input turn_on_delay
+          # Re-check humidity after delay
+          - condition: template
+            value_template: >
+              {{ states(humidity_sensor) | float(0) > turn_on_threshold }}
+          - condition: template
+            value_template: >
+              {{ states(humidity_sensor) not in ['unavailable', 'unknown'] }}
+          - service: fan.turn_on
+            target:
+              entity_id: "{{ fans_entities }}"
+          # Set up automatic shutoff timer for runaway prevention
+          - delay:
+              seconds: "{{ max_runtime_seconds }}"
+          - condition: template
+            value_template: >
+              {{ expand(fans_entities) | selectattr('state', 'eq', 'on') | list | length > 0 }}
+          - service: fan.turn_off
+            target:
+              entity_id: "{{ fans_entities }}"
+          # Enforce cooldown period
+          - delay:
+              minutes: !input cooldown_minutes
+
+      # Turn fans OFF when humidity drops below lower threshold
+      - conditions:
+          - condition: template
+            value_template: >
+              {{ current_humidity < turn_off_threshold }}
+          - condition: template
+            value_template: >
+              {{ any_fan_on }}
+          - condition: template
+            value_template: >
+              {{ states(humidity_sensor) not in ['unavailable', 'unknown'] }}
+        sequence:
+          - service: fan.turn_off
+            target:
+              entity_id: "{{ fans_entities }}"
+          # Enforce cooldown period
+          - delay:
+              minutes: !input cooldown_minutes