pic: Passive MXP expansion board



A project from early in build season, designing a simple expansion board for the MXP port. Left is a screenshot from Eagle, right is a render from EagleUp. PM me for project files!

Nice looking board!

I’m assuming that you had it made.

  1. How did it work out? The connections are close together, how many of them did you use.

  2. Where did you get the board made?

  3. For the power connections at the top of the board, what did you use for connectors?

Why did you decide to stray from the “standard” 3-pin Analog Input connection layout?

We could have done a 3-pin layout for the analogs, but felt it wasn’t necessary, at least for the analog sensors we (very rarely) use. Analog reference lines on those sensors are separated onto a different cable, which would just get soldered to the 5V or 3V3 pad, as the MXP lacks a separate analog reference line.