# SomfyCUL Binding

This binding supports controlling Somfy RTS Rollershutters (opens new window) via CUL sticks.

# Supported Things

Currently these things are supported:

  • cul-device: The CUL stick bridge used to send the actual signals to your rollershutters
  • somfy-device: The rollershutters (UP, DOWN, MY/STOP control of a rollershutter)

# Discovery

There is no auto discovery

# Thing Configuration

# cul-device Thing Configuration

Parameter Type Description Default Required Advanced
port String The serial port (COM1, /dev/ttyS0, ...) your CUL stick is attached to /dev/ttyUSB0 yes no
baudrate int The serial port baud rate 38400 yes no

# somfy-device Thing Configuration

There is no thing configuration for the somfy-device things.

# Channels

Channel Type Description
position Rollershutter Device control (UP, DOWN, MY/STOP)
program Switch Device program button (pairing)

# Full Example

Things and Items can be configured in the UI, or by using a things or items file like in the following example:

# Thing Configuration

somfy.things:

// the CUL stick
somfycul:cul-device:cul [ port="/dev/ttyUSB0", baudrate="38400" ]
/** optionally, define a custom port (e.g. /dev/ttyNanoCUL) as a udev rule, for example 
 * file: /etc/udev/rules.d/20_nanoCUL.rules
 * content: SUBSYSTEM=="tty", ATTRS{idVendor}=="0403", ATTRS{idProduct}=="6001", ATTRS{serial}=="433", SYMLINK+="ttyNanoCUL"
 * 
 * change idVendor, idProduct and idSerial depending on your CUL stick.
 * you can inspect the values of your CUL stick like this:
 * $ udevadm info -a -p $(udevadm info -q path -n /dev/ttyUSB0)
 */

// the rollershutters
somfycul:somfy-device:livingroom_shutter_left (somfycul:cul-device:cul)
somfycul:somfy-device:livingroom_shutter_right (somfycul:cul-device:cul)
somfycul:somfy-device:bedroom_shutter (somfycul:cul-device:cul)

# Item Configuration

somfy.items:

// you only need the switch items to for pairing/copy from your existing RTS remote and should remove/comment them later on
Switch      Shutter_Livingroom_Left     "Shutter Livingroom left"       {channel="somfycul:somfy-device:livingroom_shutter_left:program"}
Switch      Shutter_Livingroom_Right    "Shutter Livingroom right"      {channel="somfycul:somfy-device:livingroom_shutter_right:program"}
Switch      Shutter_Bedroom             "Shutter Bedroom"               {channel="somfycul:somfy-device:bedroom_shutter:program"}

// these will be your rollershutters with UP, DOWN, MY/STOP commands
Rollershutter Shutter_Livingroom_Left   "Shutter Livingroom left"       {channel="somfycul:somfy-device:livingroom_shutter_left:position"}
Rollershutter Shutter_Livingroom_Right  "Shutter Livingroom right"      {channel="somfycul:somfy-device:livingroom_shutter_right:position"}
Rollershutter Shutter_Bedroom           "Shutter Bedroom"               {channel="somfycul:somfy-device:bedroom_shutter:position"}

# Sitemap Configuration

sitemap home label="Home" {
        Frame label="Ground Floor" icon="groundfloor" {
                Text label="Livingroom" icon="livingroom" {
                        Default item=Shutter_Livingroom_Left
                        Default item=Shutter_Livingroom_Right
                        }

                }

        Frame label="First Floor" icon="firstfloor" {
                Text label="Bedroom" icon="bedroom" {
                        Default item=Shutter_Bedroom
                }
        }
}

# Clone Somfy RTS Remote to somfy-device

To clone an existing Somfy RTS Remote as a somfy-device, have your Somfy RTS remote ready and properly programmed to control your rollershutter. You'll need to have your somfy-device items set to Switch type and use the program channel.

Use the manufacturers procedure to copy a remote to another remote. Usually this means selecting the channel you wish to copy on your Somfy RTS remote, pressing and holding the program or PROG button for 2-3 seconds until the rollershutter briefly moves up/down to confirm it is about to be programmed. Use your somfy-device Switch item to press program shortly after to copy the remote channel to this somfy-device.

You can now set your somfy-device items back to Rollershutter item type.

# Props

Shoutout to @weisserd (opens new window) for his initial creation of this binding and allowing me to use his codebase to make it an official openHAB binding.