My Somfy window blinds are not operating from sun or temperature.
Somfy uses 2 protocols to control their products.
- Somfy RTS which can be controlled from Homey directly with the Somfy app
- Somfy io which can only be controlled with use of the Somfy TaHoma Box through a different app from Homey.
But I only wanted to control 1 window blind in my appartement which is Somfy io controlled by a remote control. The Somfy TaHoma Box is expensive if you only use it for 1 device.
Somfy has a remote to control io deices from a fixed switch: Izymo Transmitter io
What I did is connect this switch to a double relay switch which is controlled by Z-wave or Zigbee. This way you can use these Z-wave or Zigbee switches to control a Somfy io device. Make sure Homey is ether switching on the up OR the down switch and it works like a charm.
Made some flows to connect the blinds to the weather conditions and my apartment is not as hot anymore when I arrive in the afternoon.