Yesterday’s post triggered some great comments and email exchanges. I came up with this 29-pin design:
There’s a lot more to say about the board and the choices that ended up being made for this particular setup, but I’ll refrain from doing so until the pcb is ready and comes back for testing.
Let me just point out the two uncommitted LEDs with current-limiting resistors, as well as the sideways push-button at the top – again uncommitted, but it can easily be tied to the RESET pin.
Note again that this board is for male pins pointing down, so this effectively holds a JeeNode, JeeNode USB, or JeeSMD together with a half- or full-sized breadboard.
Attentive readers will have noticed the list of Arduino pin numbers along almost the entire length of the board. No more guessing or doc searching if you live in the Arduino ecosystem most of the time – Uno, Due, whatever. A few signals come out on more than one pin, but there’s a reason for that…