Add integration for Grundfos (BLE)

Feature Requests
1

The latest Grundfos Alpha 3 pumps have built in BLE
Would be nice if we could read the sensors and maybe control the pump settings

2

Is it possible to convert the code from ESPHome to Home Assistant BLE?

2 Likes
3

Hi djfanatix,
Did you manage to get any solution to control the Grundfos Alpha3 from Home assistant?
Thanks

4

Listening…

5

It will be available in the next ESPHome version (hopefully). But you can use it already if you add it as a custom component.

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6

Hi,
Could an esp connect to more than one pump with this components?
Also could it be used with Ethernet and not wifi.
Because I do not have wifi where the pumps are located but can have Ethernet. I understand that esphome support only Ethernet or wifi at the same time (found in esphome doc). But could it use Bluetooth and ethernet at the same time?

Last interrogations :innocent: will it work or need some debug/reverse engineering a little to work with magna pump series?

7

Can anyone confirm compatibility with the ALPHA 15-58 F (model 92603115)?

Also does anyone have a method for getting the BLE MAC addresses beyond adding the following to the ESP config?

esp32_ble_tracker:

text_sensor:
  - platform: ble_scanner
    name: "BLE Devices Scanner"
8

I managed to get it working, don’t use the ESPhome device for other purposes (scanning, tracking,… BLE devices) only use the supplied code, that was my error

9

Would you mind posting your ESP config contents?

What model pump do you have?

What was your method to identify the BLE mac address of the pump?

10

I would be interested as well …

11

To find Mac address:
Enable device tracker in HA

device_tracker:
  - platform: bluetooth_le_tracker

ESPHome

esphome:
  name: esp32-grundfos
  friendly_name:  ESP Grundfos
esp32:
  board: esp32dev
  framework:
    type: arduino

# Enable logging
logger:

# Enable Home Assistant API
api:
  encryption:
    key: "--secret---"

ota:
  password: "--secret--"

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Esp32-Grundfos Fallback Hotspot"
    password: "--secret--"

captive_portal:

esp32_ble_tracker:

ble_client:
  - mac_address: 80:6F:xx:xx:xx
    id: radiator_pump

sensor:
  - platform: alpha3
    ble_client_id: radiator_pump
    flow:
      name: "Radiator Pump Flow"
    head:
      name: "Radiator Pump Head"
    speed:
      name: "Radiator Pump Speed"
    power:
      name: "Radiator Pump Power"
    voltage:
      name: "Radiator Pump Voltage"
    current:
      name: "Radiator Pump Current"
12

Thank you! What model pump do you have?

13

Alpha 3 Model B

14

I was thinking about upgrading my pump at home that I use for the floor heating system to the alpha 3 model b. But I was hoping to be able to control the pump speed with home assistant, not only monitor. I see that the ESPhome component says it is for monitoring only. Perhaps someone knows if controlling it is an option aswell. Regards

15

The pump offers already different options to adapt the flow volume automatically. So there is no reason to buy this pump and then contoll the speed manually. → check the user manual

16

@djfanatix do you think it might work also for other BLE-enabled Grundfos equipment like a submersible pump with MI 301 GO accessory? As far as I understand this GO software is the same for all the BLE-enabled equipment, what do you think it might require to adopt the code for MI 301 GO?