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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.
@MichaelS
Agree - it's good to have the latest.
FWIW here's the package lettering on the chip - is it the same as your test one?
ESP8266EX
282014
POVV01
I understand from quick research, there's some variation on the package labelling (whether it makes a difference however).