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Send an SMS by semaphore

Step 3Set up an account to send SMS

Set up an account to send SMS
I don't know how easy it will be for you to get an SMS sending account. I was lucky and got in touch with a beta service for sending SMS through BT, called Mojo.

They thought this project was suitably crazy, and they let me have an account and charged it up with 200 credits for nothing. Maybe they'll do the same for you if you can prove you're (almost) completely insane.

I wrote some software to access their service which is incorporated in the download I provide at my website. I've changed the authentication credentials so you'll have to add your own.

If you get invited to beta test Mojo, you'll be able to register a user and a gadget to give you all the authentication details you need. Change the lines below in processing to match your own details...

String username = "Cefn";
String gadgetkey = "43500229d89e0263d3ca101e2998ce05ffe8b929";
String gadgetsecret = "3761e64df1036efa97c4c3bc856dfa0059478b18";

The benefit of Mojo, and other similar systems is that you can send an SMS just by making a HTTP request (in other words, just like loading a webpage). Integrating the service is very much simpler than, for example, the BT SDK, which needs certificates and all kinds of work to crack it open.

I think there are other ways to get hold of SMS sending from a PC. Add some comments to this instructable if you know of other providers which you could get at with simple code.

Update: It looks like you could use GizmoSMS as an alternative until Mojo comes out of beta, although I haven't tried this myself, yet.

Anyway, you can easily replace the postSMS() function in my code with something which uses your chosen service or just does something else with your message if you can't or don't want to use Mojo.
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Author:cefn