• @mattbrailsford thanks, I've just received my replacement Espruino and I've sorted out a few of my arduino shields to run through:

    • GPS (Adafruit ultimate shield)
    • GSM (Official Arduino, with the capacitor which has been known to explode)
    • Wi-Fi (Official Arduino shield plus has XBee connector)
    • SD Card (Official)
    • Stepper/Servo Shield (Chinese Copy)

    I have a few more but if the above pass then all should be ok. The GSM shield is the one I'm most interested in as its been known to be a pain even when sat on top of a Uno.