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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
Do you have a pullup resistor between Vcc and SDA, Vcc and SCL?
I have actually also never had any luck making those displays work, though I've only tried two, and both are suspect. One I'm not sure I got into I2C mode (it had pins like a centipede for a million interfaces), and the other one doesn't have the voltage regulator, and I accidentally applied 5v to it instead of 3.3 (mine was spec'ed 2.6-3.3), so it may be dead.