openHAB

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# Drayton Wiser Binding

This binding integrates the Drayton Wiser Smart Heating System (opens new window). The integration happens through the HeatHub, which acts as an IP gateway to the ZigBee devices (thermostats and TRVs).

# Supported Things

The Drayton Wiser binding supports the following things:

Bridge Label Description
heathub HeatHub The network device in the controller that allows us to interact with the other devices in the system
Thing Label Description
boiler-controller Boiler Controller The HeatHub attached to the boiler. This also acts as the hub device
room Room Name Virtual groups of Room Thermostats and TRVs that can have temperatures and humidities
roomstat Thermostat Wireless thermostats which monitor temperature and humidity, and call for heat
itrv iTRV Wireless TRVs that monitor temperature, alter the radiator valve state and call for heat
hotwater Hot Water Virtual thing to manage hot water states
smart-plug Smart Plug Wireless plug sockets which can be remotely switched

# Discovery

The HeatHub can be discovered automatically via mDNS, however the secret cannot be determined automatically. Once the secret has been configured, all other devices can be discovered by triggering device discovery again.

# Thing Configuration

# HeatHub Configuration

Once discovered, the HeatHub secret needs to be configured. There are a few ways to obtain this, assuming you have already configured the system using the Wiser App.

  1. Temporarily install a packet sniffing tool on your mobile device. Every request made includes the secret in the header.
  2. Enable setup mode on the HeatHub. Connect a machine temporarily to the WiserHeat_XXXXX network and browse to http://192.168.8.1/secret to obtain the secret.

The refresh interval defines in seconds, how often the binding will poll the controller for updates.

The awaySetPoint defines the temperature in degrees Celsius that will be sent to the heathub when away mode is activated.

# Channels

# Readonly Channels

# Boiler Controller

Channel Item Type Description
heatingOverride Switch State of the heating override button on the controller
heatChannel1Demand Number:Dimensionless Current demand level of heating channel 1
heatChannel1DemandState Switch Is channel 1 calling the boiler for heat
heatChannel2Demand Number:Dimensionless Current demand level of heating channel 2
heatChannel2DemandState Switch Is channel 2 calling the boiler for heat
currentSignalRSSI Number Relative Signal Strength Indicator
currentWiserSignalStrength String Human readable signal strength
currentSignalStrength Number Signal strength value that maps to qualityofservice icon

# Hot Water

Channel Item Type Description
hotWaterOverride Switch State of the hot water override button on the controller
hotWaterDemandState Switch Is hot water calling the boiler for heat
hotWaterBoosted Switch Is hot water currently being boosted
hotWaterBoostRemaining Number:Time How long until the boost deactivates in minutes

# Room

Channel Item Type Description
currentTemperature Number:Temperature Currently reported temperature
currentHumidity Number:Dimensionless Currently reported humidity (if there is a room stat configured in this room
currentDemand Number:Dimensionless Current heat demand percentage of the room
heatRequest Switch Is the room actively requesting heat from the controller
roomBoosted Switch Is the room currently being boosted
roomBoostRemaining Number:Time How long until the boost deactivates in minutes
windowState Contact Is the window open or closed?

# Room Stat

Channel Item Type Description
currentTemperature Number:Temperature Currently reported temperature
currentHumidity Number:Dimensionless Currently reported humidity
currentSetPoint Number:Temperature Currently reported set point
currentBatteryVoltage Number:ElectricPotential Currently reported battery voltage
currentWiserBatteryLevel String Human readable battery level
currentBatteryLevel Number Battery level in percent
currentSignalRSSI Number Relative Signal Strength Indicator
currentSignalLQI Number Link Quality Indicator
currentWiserSignalStrength String Human readable signal strength
currentSignalStrength Number Signal strength value that maps to qualityofservice icon
zigbeeConnected Switch Is the roomstat joined to network

# Smart TRV

Channel Item Type Description
currentTemperature Number:Temperature Currently reported temperature
currentDemand Number:Dimensionless Current heat demand percentage of the TRV
currentSetPoint Number:Temperature Currently reported set point
currentBatteryVoltage Number:ElectricPotential Currently reported battery voltage
currentWiserBatteryLevel String Human readable battery level
currentBatteryLevel Number Battery level in percent
currentSignalRSSI Number Relative Signal Strength Indicator
currentSignalLQI Number Link Quality Indicator
currentWiserSignalStrength String Human readable signal strength
currentSignalStrength Number Signal strength value that maps to qualityofservice icon
zigbeeConnected Switch Is the TRV joined to network

# Smart Plug

Channel Item Type Description
currentSignalRSSI Number Relative Signal Strength Indicator
currentSignalLQI Number Link Quality Indicator
zigbeeConnected Switch Is the TRV joined to network

# Command Channels

# Boiler Controller

Channel Item Type Description
awayModeState Switch Has away mode been enabled
ecoModeState Switch Has eco mode been enabled

# Hot Water

Channel Item Type Description
manualModeState Switch Has manual mode been enabled
hotWaterSetPoint Switch The current hot water setpoint (on or off)
hotWaterBoostDuration Number Period in hours to boost the hot water

# Room

Channel Item Type Description
currentSetPoint Number:Temperature The current set point temperature for the room
manualModeState Switch Has manual mode been enabled
roomBoostDuration Number Period in hours to boost the room temperature
windowStateDetection Switch Detect whether windows are open

# Room Stat

Channel Item Type Description
deviceLocked Switch Is the roomstat interface locked

# Smart TRV

Channel Item Type Description
deviceLocked Switch Are the TRV controls locked

# Smart Plug

Channel Item Type Description
plugOutputState Switch The current on/off state of the smart plug
plugAwayAction Switch Should the plug switch off when in away mode
manualModeState Switch Has manual mode been enabled
deviceLocked Switch Are the Smart Plug controls locked

# Known string responses for specific channels:

Channel Known responses
currentWiserSignalStrength { "VeryGood", "Good", "Medium", "Poor", "NoSignal" }
currentWiserBatteryLevel { "Full", "Normal", "TwoThirds", "OneThird", "Low", "Critical" }

# Full Example

# .things file

Bridge draytonwiser:heathub:HeatHub [ networkAddress="192.168.1.X", refresh=60, secret="secret from hub", awaySetPoint=10 ] {
    boiler-controller controller     "Controller"
    room              livingroom     "Living Room"            [ name="Living Room" ]
    room              bathroom       "Bathroom"               [ name="Bathroom" ]
    room              bedroom        "Bedroom"                [ name="Bedroom" ]
    roomstat          livingroomstat "Living Room Thermostat" [ serialNumber="ABCDEF1234" ]
    itrv              livingroomtrv  "Living Room - TRV"      [ serialNumber="ABCDEF1235" ]
    hotwater          hotwater       "Hot Water"
    smart-plug        tvplug         "TV"                     [ serialNumber="ABCDEF1236" ]
}

The name corresponds to the room name configured in the Wiser App. It is not case sensitive. The serialNumber corresponds to the device serial number which can be found on a sticker inside the battery compartment of the Smart Valves/TRVs, and behind the wall mount of the Room Thermostats.

# .items file

Switch Heating_Override      "Heating Override"    <fire>   (gHouse)    { channel="draytonwiser:boiler-controller:HeatHub:controller:heatingOverride" }
Number Heating_Demand      "Heating Demand [%.0f %%]"    <heating>   (gHouse)    { channel="draytonwiser:boiler-controller:HeatHub:controller:heatChannel1Demand" }
Switch Heating_Requesting_Heat      "Heating On"    <fire>   (gHouse)    { channel="draytonwiser:boiler-controller:HeatHub:controller:heatChannel1DemandState" }
Switch Heating_Away_Mode      "Away Mode"    <vacation>   (gHouse)    { channel="draytonwiser:boiler-controller:HeatHub:controller:awayModeState" }
Switch Heating_Eco_Mode      "Eco Mode"    <climate>   (gHouse)    { channel="draytonwiser:boiler-controller:HeatHub:controller:ecoModeState" }

/* Heating */
Switch Heating_GF_Living      "Heating"    <fire>   (GF_Living, Heating)    ["Heat Request"] { channel="draytonwiser:room:HeatHub:livingroom:heatRequest" }

/* Indoor Temperatures */
Number:Temperature livingroom_temperature    "Temperature [%.1f °C]" <temperature> (GF_Living, Temperature)    ["Temperature"] {channel="draytonwiser:room:HeatHub:livingroom:currentTemperature"}

/* Setpoint Temperatures */
Number:Temperature livingroom_setpoint    "Set Point [%.1f °C]" <temperature> (GF_Living)    ["Set Point"] {channel="draytonwiser:room:HeatHub:livingroom:currentSetPoint"}

/* Heat Demand */
Number livingroom_heatdemand    "Heat Demand [%.0f %%]" <heating> (GF_Living)    ["Heat Demand"] {channel="draytonwiser:room:HeatHub:livingroom:currentDemand"}

/* Manual Mode */
Switch ManualMode_GF_Living      "Manual Mode"    <switch>   (GF_Living)    ["Manual Mode"] { channel="draytonwiser:room:HeatHub:livingroom:manualModeState" }

/* Boost Mode */
Switch BoostMode_GF_Living      "Boosted"    <fire>   (GF_Living)    ["Boost Mode"] { channel="draytonwiser:room:HeatHub:livingroom:roomBoosted" }

/* Boost Duration */
Number BoostDuration_GF_Living      "Boost For[]"    <text>   (GF_Living)    ["Boost Duration"] { channel="draytonwiser:room:HeatHub:livingroom:roomBoostDuration" }

/* Boost Remaining */
Number BoostRemaining_GF_Living      "Boost Remaining"    <text>   (GF_Living)    ["Boost Remaining"] { channel="draytonwiser:room:HeatHub:livingroom:roomBoostRemaining" }

/* Humidity */
Number:Humidity livingroom_humidity  "Humidity [%.0f %%]" <humidity> (GF_Living) ["Humidity"] {channel="draytonwiser:room:HeatHub:livingroom:currentHumidity"}

# Sitemap

Text label="Living Room" icon="sofa" {
    Text item=livingroom_temperature
    Setpoint item=livingroom_setpoint step=0.5
    Text item=livingroom_humidity
    Text item=Heating_GF_Living
    Text item=livingroom_heatdemand
    Switch item=ManualMode_GF_Living
    Text item=BoostMode_GF_Living
    Switch item=BoostDuration_GF_Living icon="time" mappings=[0="0", 0.5="0.5", 1="1", 2="2", 3="3"]
    Text item=BoostRemaining_GF_Living icon="time"
}
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