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Nano RP2040 documentation has outdated PCB layout #131

@jdfin

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@jdfin

I think the root of the problem is the PCB layout is different in these two places:

  1. https://docs.arduino.cc/hardware/nano-rp2040-connect, the "Interactive Viewer" pulls up the Altium viewer with (what I think is) outdated files
  2. Same page, downloading "CAD Files" then loading those in Altium viewer shows a different PCB layout (which matches my fairly-new board).

An easy-to-spot difference is the IMU (what I was looking for). Clicking "interactive viewer" shows it near the reset button (by the D8 and D9 pins). That's not the IMU on my board (not sure what it is). Downloading the files and loading them into Altium viewer shows it near the A5/SCL pin, which matches what I see on my board.

If the IMU (on new boards) is as shown in the downloadable CAD files, then the "Interactive Viewer" should be fixed to load those files. Also, in the "cheat sheet" page (https://docs.arduino.cc/tutorials/nano-rp2040-connect/rp2040-01-technical-reference), the picture identifying the IMU should be fixed (it is highlighting something else based on (what I think is) the wrong PCB file. On the other hand, if I happened to get an old board and the IMU on new boards is up by D8 & D9, then the "Download CAD Files" link should be fixed.

The reason this could matter, at least a tiny bit, is that I want to put the IMU at the center of rotation of my device to simplify calculations. It only moves about 10mm between the two, but I dunno, I may as well try. :)

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