GrundfosAlpha Binding

This adds support for reading out the data of Grundfos Alpha Pumps with a Grundfos Alpha Reader (opens new window)

The reverse engineering of the protocol was taken from https://github.com/JsBergbau/AlphaDecoder (opens new window).

Supported Things

• mi401: The Grundfos MI401 ALPHA Reader

Discovery

All readers are auto-detected as soon as Bluetooth is configured in openHAB and the MI401 device is powered on.

Thing Configuration

mi401 Thing Configuration

Name	Type	Description	Default	Required	Advanced
address	text	Bluetooth address in XX:XX:XX:XX:XX:XX format	N/A	yes	no

Channels

Channel	Type	Read/Write	Description
rssi	Number	R	Received Signal Strength Indicator
flow-rate	Number:VolumetricFlowRate	R	The flow rate of the pump
pump-head	Number:Length	R	The water head above the pump
pump-temperature	Number:Temperature	R	The temperature of the pump
battery-level	Number:Dimensionless	R	The battery level of the reader

Full Example

grundfos_alpha.things (assuming you have a Bluetooth bridge with the ID bluetooth:bluegiga:adapter1:

bluetooth:mi401:hci0:sensor1 "Grundfos Alpha Reader 1" (bluetooth:bluegiga:adapter1) [ address="12:34:56:78:9A:BC" ]

grundfos_alpha.items:

Number RSSI "RSSI [%.1f dBm]" <QualityOfService> { channel="bluetooth:mi401:hci0:sensor1:rssi" }
Number:VolumetricFlowRate Flow_rate "Flowrate [%.1f %unit%]" <flow> { channel="bluetooth:mi401:hci0:sensor1:flow-rate" }
Number:Length Pump_Head "Pump head [%.1f %unit%]" <water> { channel="bluetooth:mi401:hci0:sensor1:pump-head" }
Number:Temperature Pump_Temperature "Temperature [%.1f %unit%]" <temperature> { channel="bluetooth:mi401:hci0:sensor1:pump-temperature" }
Number:Dimensionless Battery_Level "Battery Level [%d %%]" <battery> { channel="bluetooth:mi401:hci0:sensor1:battery-level" }

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