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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.
@possmann
I guess, it's not the right way to subtract it :-) I can also handle it, in my script, that's not the problem.
I will try it on my SparkCore again, if there is the same issue. I had a working project with the same library and i also used the alerts. I remember, that the alarms works fine... but i'm not quite sure. I will report it as soon as possible.