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> Arduino DCC++controller, Voltage issue
Rod Merrall
post 23 Apr 2021, 17:52
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Baggage Porter

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Hi. I have set up a controller using an arduino uno and L298P motor shield. Trains run fine with a 12 volt supply but there is no voltage at the output terminal or, obviously, the track. I cannot understand how the trains can run with no track voltage. Any explanation welcome.

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John Webb
post 24 Apr 2021, 09:09
Post #2

Railways Czar

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I don't use DCC - but there is a specialist forum at https://www.modelrailforum.com/forums/index.php?showforum=44 where your question is more likely to get a proper reply than I can give. But as far as I understand it, it's because DCC is a series of fast pulses which ordinary meters can't read properly.

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