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Good +5v source inside the cab?

Posted: Fri Sep 06, 2013 5:06 am
by free5ty1e
Anyone know off hand of a good place to tap +5v inside the cab?

I would imagine the ecu has at least one...but does it run anywhere in the cab or just to sensors under the hood...?

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Re: Good +5v source inside the cab?

Posted: Thu Sep 12, 2013 6:25 pm
by free5ty1e
Never mind. ..bought some 5v regulators and supporting parts, along with a 3-circuit terminal block so I can wire up a nice source for +12v, +5v, and ground for all in-cab wiring.

Also found my label maker so I can leave tags on wires that dont fade immediately!

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Re: Good +5v source inside the cab?

Posted: Fri Sep 13, 2013 3:01 am
by Legacy777
What are you using +5v for?

Typically the ECU +5v is a reference voltage for sensors.

Re: Good +5v source inside the cab?

Posted: Fri Sep 13, 2013 3:09 am
by free5ty1e
Reference voltage for fcd voltage divider, power for various 5v goodies and experimental microcontroller projects... id rather nor draw current from the ecu reference anyway.

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Re: Good +5v source inside the cab?

Posted: Fri Sep 13, 2013 3:24 am
by Legacy777
I agree, having a separate supply is best.