Hey guys here is a quick question.
I was givin a 16 channel opto isolated relay board to play with.
The Problem.
The relays are trigggerd when 5 volts is supplied to the control line.
The pio of the listed chips.. is a ground. is it not ?
How can i flip the pio to = + 5 volts with out adding another relay ? (
which defeats the purpopse ).
PNP transistor possably ( I Dont know I need hardware expert here)
David Perhaps ??
Thanks
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