Hi all,
I recently got an Arduino board and have been playing around with it - I'm prett comfortable with it. now to start building something pragmatic. For this, I want to be able to remotely control my board via SMS (and receive updates back).
I figured this wouldn't be too hard - I heard that many old, cheap phones support Hayes-style AT commands. If this was the case, all I'd need to do is hook my serial interface up to the phone's and start sending text to it. Easy.
So I rushed out and got my hands on the cheapest phone I could - a trusty Nokia 3310. When I got back and dug into it, I found that this (and many other) devices don't have a serial modem function.
It's still possible, of course, using the MBUS interface, but that'll require some work implementing my own bytestream. I've not done this before and it could get messy. The alternative is, of course, to do some research then go out and buy a serial-modem-enabled phone (scrapping the nokia for its screen - I hear they're useful!)
I was wondering if there's a consensus as to the best (easiest/cheapest/most reliable) approach here. Anyone got any experiences using a phone as a modem via serial or MBUS?