need some suggestion for connecting pwm converters

final project arduino home automation

We are going to make a home automation system using the Arduino boards and the RS part components. There are many functions in our home automation system. There are some descriptions about our system.

Temperature and Hummidity sensoring with feedback System
Automation Lighting System
Air-conditioning System Design
For the whole system, it will setup based with the Arduino Uno and Arduino Wifi-Shield. And we have encountered many problems when we are going to use the Wifi-Shield to setup a webserver. So, I would like to share some of my experience on using the Arduino Wifi-shield and hope you may find the information are useful.

At first, for the Arduino platform, we need to downgrade to 1.0.2 version. For Arduino 1.0.2 version, It is supported for user to build up the wifi server, so I suggest that using the 1.0.2 version of the Arduino platform for using Arduino Wifi shield to build up the Web Server.

http://arduino.googlecodefiles/arduino-1...indows.zip

For 1.0.5 version, we need to update the wifi-Shield and the firmware, and it will be very complicated, for the update detail, please go to Arduino website to get the information: http://arduino.cc/en/Hacking/WiFiShieldF...eUpgrading