Dometic Fridge Monitoring

Configuration
1

Hi, I have what I thought to be a hugely popular camping / RV etc fridge from Dometic, a CFX3. This fridge has both Bluetooth and WiFi monitoring from the CFX3 app.

I was surprised to find no information at all scanning through the integrations, HACS or just google. I was half expecting it to pop up in the discovered integrations when I brought in range of a Bluetooth proxy … but alas can’t find anything about this fridge in the home assistant world.

So, I guess my question is… am I doing it wrong? Have I overlooked something obvious? Or are people just not using these fridges?

2

I think this is not used in a home environment enought to include it in hass or create a custom integration for it.

I’ve looked into any partner companies, but even those companies don’t show up in the integrations.

3

I have 2 CFX3 units myself and use them 24/7 at home except when I go camping or something. It really would be nice to be able to monitor them.

4

I’m Interested as well

5

We have one of these CFX3 freezers as well. I might try to reverse engineer the protocol to see if i can cobble something together.

6

I have 2 CFX3’s, and 2 CFX1’s. I’d be very interested in monitoring all 4 in a single dashboard. Connecting my phone to the app (CFX1 or CFX3) stops the phone from having internet access and only allows connection to one fridge at a time, what a pain!

7

Yes, I m interested as well, to get my cfx overwatched from ha.

8

This would be awesome… have 2 of these on our boat and its the last piece that we need in our HA setup…

9

This would be awesome and would be happy to help with testing and tweaking. I have CFX in the back of the ute and HA in the caravan.

10

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11

Amazing! Can you share some details or source code? Thanks!

12

Hi there, did anyone ever figure out / publish details of the CFX interface here?

Thanks,

Andrew.

13

Hi there,

I am interested using ESPHome with BLE-proxy to receive and read the bluetooth data from my Dometic CFX2 45 fridge.
The proxy works already for BLE-tracking my phone (for homezone in/around my van) and for victron smart solar and orion ts charger very nice :smiling_face_with_three_hearts:

On my wish (todo) list:

  • Wattstunde Nova BLE LifePo4 battery information
  • Dometic CFX2 BLE control and information
  • Victron SmartSolar Control of the Load Output through ble

best wishes
Nig

14

While its an old post, here’s a link to ESP Home repo I built, confirmed operational CFX3 fridges - GitHub - andrewbackway/esphome-dometic_cfx_ble: ESPHome External Component to control and monitor Dometic CFX fridges over BLE using the native ESP-IDF BLE stack.

15

Nice! I will definitely give this a shot. Thank you.
I just got into home assistant this weekend, so I’m learning and waiting on esp32 to arrive to setup BT proxy and whatever else I can think to put in it.

16

@GentX if you’re still around… I had success with your CFX BLE integration but the CFX wants to re-pair too often for my tastes. I’m trying to use your CFX WiFi and having issues. Any chance you can help address them?

17

Turns out a couple typos in the example config were the issue… I’ll submit as issue on Git.

18

Hello, I don't understand how it was integrated. When I try to find the MAC address of the box, this is all I get.

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19

I am building my own 4x4 off-road control center, including the CFX3 Bluetooth. I can view and modify my CFX3 via the Raspberry Pi and Garmin Overlander.

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20

I was looking for the same thing and ended up creating a Home Assistant integration for the Dometic CFX3 series myself.

The integration communicates directly with the cooler over Wi-Fi using the local DDMP protocol, so no cloud service or Dometic account is required.

Current features include:

  • Local Wi-Fi communication
  • Temperature monitoring and control
  • Cooler power on/off
  • Battery protection mode selection
  • Battery voltage monitoring
  • AC/DC power source detection
  • Compressor status
  • Automatic discovery and reconnection
  • Home Assistant Config Flow support

The integration was developed and tested with a Dometic CFX3 35, but it should also work with other CFX3 models that expose the same local DDMP interface.

GitHub repository:

I'd be interested to hear from anyone who tests it with other CFX3 models.

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