It'd be a great thing to do. I'd be interested in this as well.
I've seen someone use Nokia's FBUS protocol with Espruino to send text messages via old Nokia phones. Sadly that's probably the cheapest way to do it right now.
I haven't tried it personally but can probably dig out the code if you want to give it a try?
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
It'd be a great thing to do. I'd be interested in this as well.
I've seen someone use Nokia's FBUS protocol with Espruino to send text messages via old Nokia phones. Sadly that's probably the cheapest way to do it right now.
I haven't tried it personally but can probably dig out the code if you want to give it a try?