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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.
@LawrenceGrif
Have you tried pull resistors on the ic2 scl & sda to to vdd?
Are you powering the ADS1115 from 5v or 3.3v?
Not sure if your maple leaflabs i2c pins are 5v tolerant?