IoT & Integration Traits

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IoT/Integration Traits

@twin_sync

Category: IoT/Industrial Tags: iot, twin, synchronization, sensors, industry

Bidirectional synchronization between HoloScript objects and real-world industrial sensors or digital twins.

object IndustrialArm @twin_sync(topic: "factory/cell_01/arm", interval: 100) {
  geometry: "models/arm.glb"
}

Config	Type	Default	Description
topic	string	null	MQTT/REST endpoint or topic name
interval	number	100	Sync frequency in milliseconds
mode	string	'push'	'push' (real → virtual), 'pull', 'both'
protocol	string	'mqtt'	'mqtt', 'opc-ua', 'rest'

State:

• lastUpdate - Timestamp of last sync
• sensorData - Raw data from the twin
• isConnected - Connection status

Events:

• twin_connect - Connection established
• twin_data - New data received
• twin_disconnect - Connection lost
• twin_error - Synchronization error

@twin_actuator

Category: IoT/Industrial Tags: actuator, control, physical, bridge

Triggers physical actions from virtual interactions.

object FactorySwitch @twin_actuator(actuator_id: "arm_01_reset") {
  geometry: "models/switch.glb"
  onInteraction: {
    emit "twin_trigger" { action: "reset" }
  }
}

Config	Type	Default	Description
actuator_id	string	null	Unique ID of the physical hardware
protocol	string	'mqtt'	'mqtt', 'rest'

Events:

• twin_trigger - Emitted to target physical hardware
• twin_actuated - Confirmed completion from physical hardware

@mqtt_source

MQTT message subscription.

See Also

• Compilers: DTDL
• Compilers: WoT
• API Reference