PM: 2.8" LCD board for the PM...

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Joined: 31/12/2012
Location: New Zealand
Posts: 9192
Posted: 05:57am 18 Sep 2022      

Yes, you are correct.  "J1" - solder-blob it to bypass the on-board 3v3 regulator and run the display from an external 3v3.  The LED connection is separate from that though.