<![CDATA[powering omega from the expansion dock header]]>Does applying 5v to the 5v pin on the expansion dock have the same effect as applying 5v to the micro USB port? I am enclosing an Omega in such a way that there is not room for a USB cable connection. I could buy a bare micro USB plug and wire to that, but it will be easier if I can just apply 5v to the header. I didn't find a schematic to see if the expansion dock pin is simply a pass-through of the USB power or if I'll end up on the wrong side of a regulator.

]]>http://community.onion.io/topic/3445/powering-omega-from-the-expansion-dock-headerRSS for NodeWed, 15 Apr 2026 07:41:29 GMTWed, 06 Feb 2019 21:11:49 GMT60<![CDATA[Reply to powering omega from the expansion dock header on Wed, 06 Feb 2019 21:11:49 GMT]]>Does applying 5v to the 5v pin on the expansion dock have the same effect as applying 5v to the micro USB port? I am enclosing an Omega in such a way that there is not room for a USB cable connection. I could buy a bare micro USB plug and wire to that, but it will be easier if I can just apply 5v to the header. I didn't find a schematic to see if the expansion dock pin is simply a pass-through of the USB power or if I'll end up on the wrong side of a regulator.

]]>http://community.onion.io/post/18810http://community.onion.io/post/18810Wed, 06 Feb 2019 21:11:49 GMT<![CDATA[Reply to powering omega from the expansion dock header on Thu, 07 Feb 2019 13:16:56 GMT]]>@Robert-Jensen Onion-Hardware/Schematics/Omega-Expansion-Dock.pdf

Does applying 5v to the 5v pin on the expansion dock have the same effect as applying 5v to the micro USB port?

Yes. Regarded by the schematic each VCC_5V point of the board is joint.
Be careful. In this case you should avoid to use the serial connection (via the micro USB port) due to back-powering the USB port of the host PC.

Please correct me if I'm wrong because I don't have any genuine Onion Expansion Docks.

]]>http://community.onion.io/post/18813http://community.onion.io/post/18813Thu, 07 Feb 2019 13:16:56 GMT<![CDATA[Reply to powering omega from the expansion dock header on Thu, 07 Feb 2019 01:56:29 GMT]]>Thanks. Where did you find the schematic?

]]>http://community.onion.io/post/18814http://community.onion.io/post/18814Thu, 07 Feb 2019 01:56:29 GMT<![CDATA[Reply to powering omega from the expansion dock header on Thu, 07 Feb 2019 13:12:46 GMT]]>@Robert-Jensen https://github.com/OnionIoT/ is one of Onion's official repositories.
The schematics were uploaded by greenbreakfast AKA @Lazar-Demin - the CET of Onion Co.

]]>http://community.onion.io/post/18818http://community.onion.io/post/18818Thu, 07 Feb 2019 13:12:46 GMT