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"  { ... }

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

plantuml

@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

iot

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