Can someone help design a 5 volt circuit
Yes I realize this is an RV forum but the post is related to wiring on my tow vehicle. I have a diagram below of what I am trying to do. But I will spell it out as best as I can first. My hope is that...
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I disagree with JK Wilson the line you mark 5 volt return is in fact Sense. not return... Now. I do not know the specs on that computer but. have the following suggestions.
The relay.. use a very low current pilot relay (like a reed relay) and if needed a second relay .. the 12 volt from this relay does not go to the starter but the starter solenoid.
The "low" end of the relay goes to ground. not to the 5 volt return
The 5 volt return goes to the 5 volt side of the relay.
The reason for this is it is not a 'return' it's a 'sense'
IF this does not work you are 2 wires from the plan you purpose so its' an easy switch.
you may fnd the N/P switch goes to ground already.. If so simply move it in the circuit to the ground side of the relay
The relay.. use a very low current pilot relay (like a reed relay) and if needed a second relay .. the 12 volt from this relay does not go to the starter but the starter solenoid.
The "low" end of the relay goes to ground. not to the 5 volt return
The 5 volt return goes to the 5 volt side of the relay.
The reason for this is it is not a 'return' it's a 'sense'
IF this does not work you are 2 wires from the plan you purpose so its' an easy switch.
you may fnd the N/P switch goes to ground already.. If so simply move it in the circuit to the ground side of the relay
