Looking for tutorial on monitoring a set of contacts


looking tutorial on time , event logging/recording.


i hope request isn't bother but, hope place post it. learn how use arduino monitor set of contacts , report when open or closed. times need recorded , used in  future calculations. start project have in mind. if have suggestions please send them along.

you need rtc time , contacts treated same basic switch.

both of these basics have been covered many times. search.

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Arduino Forum > Using Arduino > Sensors > Looking for tutorial on monitoring a set of contacts


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