I fixed fzp file. (ver.06DEC2017)
IchigoJam T.fzpz (79.5 KB)
Is IN3 connected to SDA (the buses make it so which may or may not be correct)?
Yes, IN3 and SDA are shared bus.
Presumably all 3 gnd pins should be bused (only 2 are at present)?
You are correct. All three GND pins should be bused.
I fixed it on new fzp file.
The two VCC pins are bused together but don’t go to either the 5V pin nor the 3.3V pin (but perhaps they are not supposed to?)
Two VCC pins between CN3 and CN4 are connected inside CPU.
The VCC(CN3) and 3.3V(CN5) are connected on the board.
5V(CN5) is directly supplied from USB power supply and does not pass through the inside of CPU.
The pins in the fzp file should be male not female (this doesn’t refer to the type of connector but rather female is for breadboard pins and male is usual for parts).
I couldn’t understand it.
I checked pins of RPi3 and ARDUINO UNO by “new parts editor” of Fritzing.
On RPi3, all pins are set to male, but on ARDUINO all pins are set to female.
Therefore I think that all pins of IchigoJam T should be set to female.
If you supply the information about how the buses should connect I can clean the part up for you.
Thank you so much.
If new fzp file (ver.06DEC2017) is incorrect, fix it please.