Editor's Note

iot

Create IoT architecture diagrams using PlantUML syntax with device and sensor stencil icons. Best for smart home, industrial IoT (IIoT), fleet management, edge computing, and sensor network layouts.

Install

npx skills add https://github.com/markdown-viewer/skills --skill iot

SKILL.md

IoT Architecture Diagram Generator

Quick Start: Select device/sensor icons → Place edge gateways → Connect to cloud services → Group into zones → Wrap in ```plantuml fence.

⚠️ IMPORTANT: Always use ```plantuml or ```puml code fence. NEVER use ```text — it will NOT render as a diagram.

Critical Rules

Every diagram starts with @startuml and ends with @enduml
Use left to right direction for typical IoT data flows (Device → Edge → Cloud)
Use mxgraph.aws4.* stencil syntax for IoT service and device icons
Default colors are applied automatically — you do NOT need to specify fillColor or strokeColor
Use rectangle "Zone" { ... } or package "Site" { ... } for grouping
Directed flows use -->, async/event-driven flows use ..> (dashed)

Full stencil reference: See stencils/README.md for 9500+ available icons.

Mxgraph Stencil Syntax

mxgraph.aws4.<icon> "Label" as <alias>

Core IoT Stencils

Category	Stencils	Purpose
IoT Platform	`iot_core`, `internet_of_things`, `iot_1click`	Central IoT hub / message broker
Edge/Gateway	`greengrass`, `iot_device_gateway`, `freertos`, `iot_expresslink`	Edge computing & device gateway
Greengrass	`iot_greengrass_component`, `iot_greengrass_nucleus`, `iot_greengrass_stream_manager`	Edge runtime components
Device Mgmt	`iot_device_management`, `iot_device_defender`, `iot_device_tester`, `iot_over_the_air_update`	Fleet provisioning, security, OTA
Analytics	`iot_analytics`, `iot_analytics_channel`, `iot_analytics_pipeline`, `iot_analytics_dataset`, `iot_analytics_data_store`	IoT data processing pipeline
Events/Rules	`iot_events`, `iot_device_defender_iot_device_jobs`	Event detection & job execution
Digital Twin	`iot_twinmaker`, `iot_sitewise`, `iot_sitewise_asset`, `iot_sitewise_asset_model`	Asset modeling & visualization
Fleet	`iot_fleetwise`, `iot_device_management_fleet`	Vehicle & device fleet telemetry

Device & Sensor Stencils

Category	Stencils
Sensors	`sensor`, `iot_thing_temperature_sensor`, `iot_thing_humidity_sensor`, `iot_thing_vibration_sensor`, `iot_thing_temperature_humidity_sensor`, `iot_thing_temperature_vibration_sensor`
Actuators	`actuator`, `iot_thing_relay`, `iot_thing_stacklight`
Industrial	`factory`, `iot_thing_industrial_pc`, `iot_thing_plc`
Smart Home	`thermostat`, `alexa_enabled_device`, `alexa_smart_home_skill`, `camera`, `camera2`
Protocols	`mqtt_protocol`, `iot_lorawan_protocol`, `iot_greengrass_protocol`
Boats/Vehicles	`iot_sailboat`, `iot_fleetwise`
Robotics	`robomaker`, `iot_roborunner`

Connection Types

Syntax	Meaning	Use Case
`A --> B`	Solid arrow	Sync API / data flow
`A ..> B`	Dashed arrow	Async telemetry / MQTT publish
`A -- B`	Solid line	Physical / bidirectional link
`A --> B : "label"`	Labeled connection	Describe protocol or data

Quick Example

@startuml
left to right direction
rectangle "Factory Floor" {
  mxgraph.aws4.sensor "Temp\nSensor" as s1
  mxgraph.aws4.iot_thing_plc "PLC" as plc
}
mxgraph.aws4.greengrass "Greengrass\nEdge" as gg
mxgraph.aws4.iot_core "IoT Core" as core
mxgraph.aws4.iot_analytics "IoT\nAnalytics" as analytics

s1 --> gg : MQTT
plc --> gg
gg --> core
core --> analytics
@enduml

IoT Architecture Types

Type	Purpose	Key Stencils	Example
Smart Factory	Industrial IoT monitoring	`sensor`, `iot_thing_plc`, `greengrass`, `iot_sitewise`	smart-factory.md
Smart Home	Home automation	`thermostat`, `alexa_enabled_device`, `camera`, `iot_core`	smart-home.md
Fleet Telemetry	Vehicle fleet tracking	`iot_fleetwise`, `iot_core`, `iot_analytics`	fleet-telemetry.md
Edge Computing	Local processing at edge	`greengrass`, `freertos`, `iot_greengrass_component`	edge-computing.md
Digital Twin	Asset modeling & simulation	`iot_twinmaker`, `iot_sitewise_asset_model`, `iot_sitewise`	digital-twin.md
Sensor Network	Distributed sensor mesh	`sensor`, `iot_lorawan_protocol`, `iot_device_gateway`	sensor-network.md
Device Management	Fleet provisioning & OTA	`iot_device_management`, `iot_device_defender`, `iot_over_the_air_update`	device-management.md
Robotics	Robot fleet orchestration	`robomaker`, `iot_roborunner`, `greengrass`	robotics.md

Installs889

GitHub Stars2.4k

AddedJan 31, 2026