Identifying API on local device - Flexit Roomie Dual Wifi

Hi :slight_smile:

I’ve got a fan called Flexit Roomie Dual Wifi installed in my office that I control using an iOS app called Flexit Roomie. I cannot find any information on how the app connects to the fan. In the app i only specify the local IP address for the device and it works without any password or other security.

The device has an espressif esp-wroom-02 chip on it. I’ve been checking the board for accessible pins, but it’s not very tinkering friendly made.

Is it possible to identify how to access the API without knowing the url, port or any other info?

It there any easy way to sniff how the app communicates with the device?

I’ve got no experience on this whatsoever, but would like to try figuring it out. Any help would be much appreciated

Photo be nice mite be able to put tasmota or esp home on it

I’ve been going through the whole board with a multimeter in search for accessible RX/TX, but could not find any. I only find them in places I’m not comfortable soldering on.

This is the whole board:

Here’s a closeup on the esp-wroom-02 chip:

Another possibility would be to connect a second ESP to the input used by the control board on the side, but then I have to figure out how it works.
37_crop

I would really like to connect to the API or know how the app is communicating with the device before I start working on flashing it with custom firmware.

Is there any way to identify how to find and access the API?

Hi,
I’m also interested in finding a way off controlling the flexit wifi thru home assistant. @mycortex have you figured out something?

Hi, @Qurium! :slight_smile:

Yes, at least something that works for my use.

I came across this custom component made by aglehmann:

I’m only able to turn the fan on/off with this component and it’s good enough for me as I only use one fan speed and never change it. The fan speed setting is not sending the correct hexcode.

aglehmann say he will look into it, but I don’t know when.

Thanks Mathias! That component seams to be what I could use. I have not bought the fan yet but I whant to know beforehand if what I buy is supported :slight_smile:
In that component he also mentions 2 other fans so then I have to look into them :slight_smile:

Happy to help :slight_smile:

As I said in the first post I have the Flexit Roomie Dual Wifi and I can verify that this component works with my fan. How it works with other fans I don’t know, but the documentation used to send and receive commands is taken from Blauberg VENTO Expert Duo A30-1 W that looks like it’s the same fan.

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Just to let you know. Set fan speed now works in the latest version.

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Also succeeded to integrate this fan with HA. But every time HA sends command to device - it beeps. Do you succed in turning off sound for your device?

I have not tried and have not seen any setting that I can remember can disable it.

I have my fan in a place where it doesn’t bother me.

Maybe some hardware hacking? Find the beeper and cut a wire or disable it in a way?

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OK, so now it started to get irritating. Decided to find a way to silence it, or at least reduce volume.

I found a solution witch was good enough for me. Just put some tape over the vent on the bottom helped alot. The beeper is located just inside of the vent so if that’s not sufficient you can try doing some more drastic on it.

Hi Community,

I have a question :slightly_smiling_face:
As a novice HA user I’ve installed integration via HACS, and added these few lines to yaml file:
ecovent:
devices:
- name: “Bathroom fan”
ip_address: x.x.x.x

From GitHub doc - readme file, it states that something else is needed.
But I’m not sure how to use the py script that seems to be needed.

Do in need to install something else, and how where should config be setup.
I thought I would get devices listed after restarting HA.

Could someone please explain?

Thanks!!

I just had a Roomie Dual Wifi installed and the ecovent is working great with it.
For now I am using an enity card on my dashboard. But it would be nice to directly have this:


Anyone knows how to do that?
It would be even better if we could also select the airflow somehow

When using the tile card, and then features I get something that is close to what I wanted. Only missing the ventilation options…
image

features:
  - type: fan-speed
type: tile
entity: fan.roomie_dual_office
show_entity_picture: false
hide_state: false
vertical: false
name: Roomie Office

Does this integration still work for Flexit Roomie Wifi?
My integration fails on setup:

Logger: homeassistant.components.fan
Source: helpers/entity_platform.py:364
integration: Fan (documentation, issues)
First occurred: 21:39:27 (1 occurrences)
Last logged: 21:39:27

Error while setting up ecovent platform for fan
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/entity_platform.py", line 364, in _async_setup_platform
    await asyncio.shield(awaitable)
  File "/config/custom_components/ecovent/fan.py", line 62, in async_setup_platform
    hass.data[ECOVENT_FAN_DEVICES].append(EcoventFan(device))
                                          ^^^^^^^^^^^^^^^^^^
  File "/config/custom_components/ecovent/fan.py", line 91, in __init__
    self._fan.update()
  File "/usr/local/lib/python3.12/site-packages/ecovent/__init__.py", line 43, in update
    response = self.receive()
               ^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/ecovent/__init__.py", line 36, in receive
    response = self.socket.recv(98)
               ^^^^^^^^^^^^^^^^^^^^
ConnectionRefusedError: [Errno 111] Connection refused