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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
Yes, the scanner should have found it (I think) - so you're basically getting I2C timeout errors whatever you do?
Are you totally sure the SDA and SCL pins are connected properly and the right way around? I you don't have a logic analyser you could try sticking LEDs (pulled down from 3.3v) on the two pins, and making sure they're flashing when you do an I2C request?
You could also try running I2C at a different baud rate? Sometimes things are a bit picky about it, but it's rare.