switch:
-  platform: gpio
   pin: GPIO33
   id: led
- platform: template
  id: switch1
  optimistic: true
  turn_on_action:
  - while:
      condition:
         switch.is_on: switch1
      then:
        - switch.turn_on: led
        - delay: 250ms
        - switch.turn_on: led
        - delay: 250ms
  turn_off_action:
    - switch.turn_off: led


sensor:
  - platform: adc
    pin: GPIO35
    name: "Pressure 1"
    update_interval: 60s
    attenuation: 11db
    on_value_range:
     - above: 0.5
       #interval: 1s
       then:
        switch.turn_on: switch1
     - below: 0.49999
       then:
        switch.turn_off: switch1