The Planted Tank Forum - View Single Post - Another Arduino LED light schedule sketch
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post #4 of (permalink) Old 01-14-2013, 02:13 PM Thread Starter
Algae Grower
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Join Date: Mar 2012
Location: Denmark
Posts: 111
You're welcome!
Yes, an RTC module will be necessary, the arduino itself is nowhere near accurate enough to to provide useful time keeping for longer periods.
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