The plan

The high level plan to build the Somfy controller is as follows:

• hard wire a Somfy Telis 4 remote to a micro controller to control the Somfy devices
• use an Arduino Ethernet micro controller
• program the Arduino to read the sensor values, control the Telis-4 remote, and implements a webserver to communicate with the Vera Lite
• build a custom plugin for the Vera Lite to communicate with the Arduino
• connect a temperature controller and a light sensor to the Arduino

Shopping list:

• Somfy Telis 4 remote
• X Arduino Ethernet microcontroller
• X FTDI break-out to program the Arduino
• X Arduino proto shield to solder the final circuit
• X Enclosure for the Arduino and one shield
• V 4x optocouplers (CNY17-3) to wire the buttons on the Telis 4 to  Arduino
• V 4x 330 ohm resisters to wire the optocouplers to the digital out pins of  Arduino
• X 1x digital temperature sensor DS18B20
• V 1x 4700 ohm pull-up resistor for connecting the DS18B20 to Arduino
• V 1x analog light sensor APDS-9007 (3-70K lux)
• V 1x 56K ohm pull-up resistor for connecting the DS18B20 to Arduino

And some other electronics equipment, because this is my first project:

• V Breadboard and 
• V cabling to experiment with the setup
• V a red LED (2.25V, 20mA)
• V 1x 150 ohm resistor for the LED
• V a multimeter

V= CONRAD
X= ANTRATEK