What transistor will I need to get and could you recommend what thread to read on regard to the software aspect of this? Keep in mind i'm a total newb and need step by babystep guidance :O
I want the circuit to open or close at adjustable set voltages
I assume the relay is needed for the 12v power to the uno r3 itself?
Based on input of 0-5 v adjustable I want a 12 v output.The circuit that will either be a 12 v output or a ground. QuoteWhy is a relay and transistor needed if the r3 has 12v output?
Why is a relay and transistor needed if the r3 has 12v output?
Figured 12v in 12v out. Again attribute that to my newbness.
What is the link between the relay used to determine the transistor used? Is the relay merely for powering on the unor3 board?
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