Device template functions

These template functions let you work with devicesA device is a model representing a physical or logical unit that contains entities. in Home Assistant. Look up device names, IDs, attributes, and find which entitiesAn entity represents a sensor, actor, or function in Home Assistant. Entities are used to monitor physical properties or to control other entities. An entity is usually part of a device or a service. [Learn more] belong to a device.

Home Assistant extends the Jinja2 template engine with many custom functions, filters, and tests. Each function on this page has its own page with detailed descriptions, parameters, and practical examples.

New to templates? Start with the templating documentation to learn the basics.

• Get device attribute device_attr Returns the value of a specific attribute from a device.
• Get entities for a device device_entities Returns a list of entity IDs associated with a given device.
• Get a device ID device_id Returns the device ID for a given entity ID or device name.
• Get a device name device_name Returns the name of a device from a device ID or entity ID.
• Test device attribute is_device_attr Tests if a specific attribute of a device has a given value.