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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.
@Gordon
Espruino's voltage regulator is only 150mA so it won't power the CC3000 - unfortunately bigger regulators draw way too much power.
The Adafruit module has a very hefty 3.3v regulator on-board though, so it should run off of a 12v battery just fine unless I'm mistaken... See the schematic: http://learn.adafruit.com/system/assets/assets/000/010/985/original/adafruit_products_cc.png?1379351147