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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.
@LawrenceGrif
Most M2M sims don't operate on PAYG but do allow you to cancel after a month. As your in the UK try http://m2msecuritysims.com I'm using thier SIMs to talk from RPI to a cloud end point. They start at £1 per month for 1mb.
I've just got some sim's from http://konekt.io you don't need thier hardware! Thier SIMS start $1 per month for 1mb. What's more you get a full SIM management and a simple API to post data to thier cloud service & a forwarding service to your cloud endpoint. They catter for both pro & makers. I'm planning to move all my projects to thier platform over time.