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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.
@DrAzzy
Yeah - sadly the STM32's don't have builtin EEPROM.
I recommend AT24 eeproms - the both the chips and the modules are cheap and abundant. http://www.espruino.com/AT24 (info on AT24 and Espruino)
http://www.ebay.com/itm/171325005348 (this is the kind of module I use, if I'm not soldering it into the prototyping area)