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MQTT gateway for EQ-3 Max heating control system

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max-mqtt

Project delivers MQTT gateway for EQ-3 Max! heating control system.

##Supported Max! components:

  • LAN Gateway
  • wall thermostat
  • radiator thermostat

##Current features:

  • reporting parameters from components:
    • mode
    • target temperature
    • actual temperature
    • valve position (for thermostats)
    • battery and link status
    • duty cycle and free memory slots for cube
  • setting target temperature
  • maintaning set temperature (sometimes system behaves strangely, and set temperatures on its own, application can reset it to default values)

Configuration

Whole configuration is located in config.json file.

{
  "mqtt_host": "your.mqtt.broker.host",
  "mqtt_port": 1883,
  "mqtt_prefix": "/data/MaxCube",
  "mqtt_message_timeout": 60,
  "max_cube_ip_adress": "172.22.0.1",
  "max_topology_refresh_interval": 60,
  "max_mqtt_update_intervals": 300,
  "max_cube_duty_cycle_reset_interval": 3600,
  "max_perform_sanity_check" : true
}
config param meaning
mqtt_host MQTT broker host
mqtt_port MQTT broker port
mqtt_prefix prefix for publish and subscribe topic
mqtt_message_timeout timeout for dropping obsolete messages from send queue
max_cube_ip LAN gateway IP address
max_topology_refresh_interval Interval of refreshing data from Max! system
max_mqtt_update_interval Interval of refreshing parameters (even if they not change) in MQTT. In the same time topology of your Max! network is dumped to file topology.json and sanity check is performed.
max_cube_duty_cycle_reset_interval Time after duty_cycle counter is reset (since last operation)
max_perform_sanity_check Enabling sanity check

##Output data Application pushes informations to MQTT broker in following format: [mqtt_prefix]/[device_serial_number]/[parameter]

Every change should be published to topic: [mqtt_prefix]/[device_serial_number]/[parameter]/set (currently is supported only target_temperature)

###Sample data

##References

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MQTT gateway for EQ-3 Max heating control system

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