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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.
user81574
@PaddeK
My example was to get the template of slot 0. So you need to have previously enrolled a fingerprint to slot 0. You can check how many templates are stored with getEnrollCount()
or check if a particular slot is used by a template with checkEnrolled(slot).
I will try to make a more complete example later today.