# 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" ]


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" }