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[on:]

Hi all.  I am searching the forums and websites for answers, but I would like to hook my arduino up to a cell phone in order to send sms'.  I happen to have a nokia 6310 and I noticed that it's pinout:
http://www.nokia-tuning.net/index.php?s=pinout_5161

has the Tx and Rx pins.  I see some have already asked this question but never got a replys:
http://arduino.cc/forum/index.php/topic,11569.0.html
http://arduino.cc/forum/index.php/topic,19387.0.html

Why would it not be possible to directly hook the arduino up to the Tx and Rx ports on the phone and communicate via AT to send sms'?

[Reply #1 on:]

Hi I'm having same problem. I'm pretty certain these phones use fbus/MBus

[Reply #2 on:]

I used to have a Nokia 6133 before I upgraded to an Android phone.  I used to play around with AT commands using gnokii on Linux, including the commands to set up a network connection, so you might want to look at that site (http://gnokii.org/), and possibly do source code delving.  I don't remember what cable I used on the 6133, perhaps it was a straight mini-usb.

You might check http://gnokii.org/cables.shtml and http://www.panuworld.net/nuukiaworld/ on cable making.

[Reply #3 on:]

The interface on these Nokia phones is "fbus" and not a simple serial AT type command set.  The nice folks at embedtronics refer to an AVR implementation of fbus, but I haven't been able to find it anywhere.  There is definitely a trick to getting this going, and all the work I did to try to get this going is here:
http://1474orchard.ca/projects/?x=entry:entry110123-142726
http://1474orchard.ca/projects/?x=entry:entry110126-003505

In the end, I would recommend using a different phone -- I think the Ericsson and Siemens phones have a more tractable interface protocol -- or using a purpose-built GSM module.  The latter is what I eventually did.  While tinkering with fbus was interesting and all, I finally found that I just wasn't making headway.