Somfy Blinds controller question

Hardware
1

Afternoon all,

I am looking to integrate my Somfy roller blinds with Home Assistant.

I was wondering if anyone knows if this hub will work: Somfy Tahoma Mini Connectivity Kit | blindsbypost

This seems to be the cheapest one around and looking to do it as cheap as possible. At the moment we only have 2x somfy blinds but ultimately will end up with 5.

2

@Maximusii yes this will work, however please note that the Somfy Connectivity Kit does not offer an local API. You can use the Overkiz integration via the cloud, but if you want local support, you would need to buy the Somfy TaHoma v2 or the Somfy TaHoma Switch.

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3

Thank you. I would much prefer local control but I cannot justify another £100 currently :cry:

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4

I have ordered an awning that will be Somfy powered, and the company is offering me the " Tahooma Switch io/RTS/Zigbee 3.0" for free.

As it seems to support Zigbee, should I connect it as Zigbee or as Overkiz?
I have no whish or need to connect the Tahoma to the cloud at any point if it can be avoided, neither do I have any interest in the Somfy app - HA is all I need :slight_smile:

5

With a little effort you can get the Somfy blinds integrated with HA for < £10.
I use an ESP8266 and RF module which controls my 4 Somfy blinds, been using it for around 9 months now and it’s been flawless.
It takes a little soldering but nothing major and does have a few caveats:

  • There is no ‘reporting’ from the blinds, so for accurate state of the blinds in HA you shouldn’t use the original Somfy remote (I just use some Ikea wall buttons or Alexa which tell HA to open/close the blind)
  • Position control can be achieved even though the blinds don’t know their position (eg. Alexa open the blind to 50%) but it’s done based on timing so can require a small amount of tweaking to get it as accurate as possible.

RF sender details are here; https://github.com/aszopko/somfy-esp8266
(Note that wasn’t the library I ended up using - I did it with ESPHome and imported another library, if anyone is interested I can post up the details)

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6

I doubt that your awning works on Zigbee, probably it is using IO or RTS protocol. The best is to have a device that supports IO, since you will have two-way state updates and real-time position.

Via the Somfy Switch you can enable the local API, that eventually will be supported in Home Assistant. Currently only the cloud API is supported.

7

Would love the ESPHome details please…

8

Does the Switch support state from the blinds?

9

This is supported by all hubs for IO hardware. If you only have RTS, this isn’t supported and you can look at other solutions as well with ESPhome.