Linksys WRT54G Serial Port+ Arduino

iitbulls:
Hi,
I am new to arduino usage and was thinking of building a Home automation project. I wanted to know if it is possible to use the serial port in linksys router ( after hacking it to give one) to give control information to the arduino.

I basically wish to connect the system to a tablet wirelessly and the tablet will have an app to control the house automation rules.
This will get passed on to a linksys router( cheap and easy to hack) whihc can send the information to arduino and arduino can control using the RF modules(434hz) to operate the elecricla systems in the house.
If you could guide me to any suitable links or could contribute to this idea would be glad to hear form you.

Forgot how to use google, I see...

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1263790595
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1255711730
http://www.rwhitby.net/projects/wrt54gs

http://www.andrewhazelden.com/blog/2010/01/how-to-use-the-serial-ports-on-a-linksys-wrt54gs-with-dd-wrt-v24/

Note that not all of these deal with using the WRT54G and Arduino exclusively; furthermore, not all deal with bi-directional communication. That said, some do, and give details. The main issue is level conversion, of course, between the Arduino's 5 volt logic levels and the WRT54G 3.3 volt logic levels. There are solutions available, though, and they should be detailed among the various links above. So - read them all carefully, and make absolute sure of your levels in both directions before hooking things up completely (otherwise, you risk damage to the Arduino and/or the router).

Good luck - hope this helps (and you might do a bit more googling on the subject as well).

:slight_smile: