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Replying to @tomfleet and @pwavrobot

Yep the error is that in the boost circuit, VGL/VGH should be named PREVGL/PREVGH. Luckily it was easy to cut traces and reroute. Other tweak: the Feather’s I²C lines shouldn’t connect to the display’s. Rev B will come; goal is to make it an open hardware, DIY device for reading.

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