IoT gateway
Project description
IoT Gateway
IoT gateway is a device that connects its client devices to a IoT platforms.
@startditaa
+--------+ +---------+ I2 +----------+
| | I1 | +<----------+ IoT |
| Device +<------>+ Gateway + Bridge | Platform |
| | | |---------->| |
+--------+ +---------+ telemetry +----------+
state
@endditaa
Interface I1
Interface between Device and Gateway
Protocol: MQTT
Mqtt topics:
- Attach
- Unattach
- State
- Event
- Config
- Commands
Attach topic
- Topic name: /attach
- Payload: device id as string
- Source: device
Unattach topic
- Topic name: /unattach
- Payload: device id as string
- Source: device
State topic
- Topic name: /state/<device_id>
- Payload: device state
- Source: device
Event topic
- Topic name: /event/<device_id>
- Payload: an event
- Source: device
Config topic
- Topic name: /config/<device_id>
- Payload: configuration
- Source: gateway
Commands topic
- Topic name: /commands/<device_id>
- Payload: command
- Source: gateway
Interface I2
Interface between Gateway and Bridge
Protocol: MQTT
Event topic
- Topic name: /devices/<device_id>/events
- Payload: event
- Source: gateway
State topic
- Topic name: /devices/<device_id>/state
- Payload: state
- Source: gateway
Config topic
- Topic name: /devices/<device_id>/config
- Payload: configuration
- Source: IoT platform
Commands topic
- Topic name: /devices/<device_id>/commands/#
- Payload: command
- Source: IoT platform
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