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  • @Gordon the gsm2 click supports 3.3v io but still requires a 5v line in. This has been brought up a number of times on their forum as their marketing seemed to suggest it would only need the 3.3v in.

    @DrAzzy I'm fitting the whole project into a black vox which is 7*4*3 inches. There is probably about 4*2*2 inches left after adding all my other components in. Weight is no issue within reason.