Wireless Sensor Network Module

CAAD – Embeddedlab

Wireless Sensor Network Module is a remote control system based on Arduino, Ethernet W5100 and RFM12 wireless module. It is a cooperative project between the Embedded Lab of CAAD of ETH and the CAAD of Southeast University in China. We are trying to design a low cost, highly adaptable and modular remote control system which could be applied to smart building system. At present, we are still dealing with the prototypes of the hardware, and we have just realized the basic communication among the nodes and the remote terminal.

This system consists of three major parts. The first one is the Arduino Web Server which allows the access form the Internet. The second one is wireless controller attached to the home applicants. The third one is wireless switch which is used to turn on and off the wireless controller.

china node

With the help of Arduino Web Server, you can access the system easily by opening a browser on your PC or smart phone. The server, can also control the other nodes (wireless controller & wireless switch) belong to the system. Besides that, updating the status of each node, temperature, humidity and other information in house is also an important part of work for the server. Besides controlling the nodes online, with wireless switch, you can also control them by hand. Compared with the old style fixed switches, the wireless switches can not only save the materials, but also much flexible to install. You can randomly set the pairs of the nodes and also reset them whenever you want.

china node

The server consists of five parts:
Arduino Mega 1280
RTC module
Ethernet shield
SD card shield
RFM12 shield.

In this little video, I’m going to use three lamps to demonstrate how the system works. Just open the browser, enter the address of the server, type “o” or “f” to turn on or off the lamps, click submit to send the command.

read more http://www.embedded.arch.ethz.ch/Projects/ChinaNode