Somfy Cover Group component for ESPHome

This is a custom component for ESPHome that allows you to control a group of Somfy covers with a single ESPHome device.

This work is based on ruedli/SomfyMQTT using an ESP8266 and CC1101 for RF transmission.

I followed the wiring scheme from LSatan/SmartRC-CC1101-Driver-Lib:

I had to change ruedli/SomfyMQTT's code to use pin 5 instead of 2 with this wiring for some reason (I_don't_know_what_I'm_doing.gif).

Based on all this work, I created this custom component for ESPHome that can be used with a configuration file like this:

esphome:
  name: somfy_remote_control

esp8266:
  board: esp01_1m

...

external_components:
  - source:
      type: local
      path: my_components

somfy_cover_group:
  covers:
      - id: "office_big_roller_blind"
        name: "Office Big Roller Blind"
        remote_code: 0x123455
      - id: "office_small_roller_blind"
        name: "Office Small Roller Blind"
        remote_code: 0x123456

Just change the source to this repository if that's what you wanna use, or copy/clone this to your external components folder and tweak the path accordingly.

Then add as many covers as you want to the somfy_cover_group configuration, each with a unique id, name and remote_code. The remote_code identifies the remote control. It's like having multiple physical remote controllers in the same device.

Then, in Home Assistant you will have, for each cover you added:

• 🪟 The cover controls (to open ⬆️, close ⬇️ and stop ⏹️).
• 🔘 One switch (PROG) to synchronize the remote control with the Somfy cover. You need to set the Somfy cover in "pairing mode", and then use the PROG switch from Home Assistant in order to pair them together.
• 🔘 One switch (FAVORITE) mapped to the My button of the Somfy control, which essentially moves the cover to a "favorite" position that you have configured beforehand.

I used the 3D model from ruedli/SomfyMQTT to create a case for the ESP8266 and CC1101. I copied them to this repo for completion, but all the design is ruedli's. You can find it in the case folder.

Acknowledgements

• LSatan/SmartRC-CC1101-Driver-Lib for all the work to connect ESP8266 and CC1101.
• ruedli/SomfyMQTT for the idea, the 3D model and sharing all this work.
• Legion2/Somfy_Remote_Lib for all the work to encapsulate the Somfy protocol.