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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
Great! The step counting is itself pretty simple - it basically looks at the magnitude of the acceleration and then detects when it varies from 1G by more than a certain amount (which is configurable by
stepCounterThreshold*).accelreadings come in at 12.5 Hz so shouldn't be too painful to work with. Maybe you could consider keeping the last 10/20 readings in an array and then plotting that array whenever you get a step event.I'd be interested in other methods of doing it, but it would appear to be the normal way these things work.