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 useplantuml
or
puml
code fence. NEVER usetext
— 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. "Label" as
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