tuya-local/custom_components/tuya_local/devices/simple_switch_timerv2.yaml

name: Simple switch with timer
products:
  - id: eetmtcempdyxgpx5
    name: Nexxt 220v smartplug
  - id: 45gg9a0jfyzj1z1d
    name: Mini smart switch
primary_entity:
  entity: switch
  dps:
    - id: 1
      name: switch
      type: boolean
secondary_entities:
  - entity: number
    category: config
    name: Timer
    icon: "mdi:timer"
    dps:
      - id: 9
        name: value
        type: integer
        unit: min
        range:
          min: 0
          max: 86400
        mapping:
          - scale: 60
            step: 60
  - entity: select
    name: Power on state
    icon: "mdi:toggle-switch"
    category: config
    dps:
      - id: 38
        type: string
        name: option
        optional: true
        mapping:
          - dps_val: "on"
            value: "On"
          - dps_val: "off"
            value: "Off"
          - dps_val: memory
            value: Last state
          - dps_val: null
            invalid: true