Layout is a fairly tedious process. But I'm making progress. I dedicated most of the weekend to other household tasks that were also being neglected, so I'm still struggling to get this done. I'm not sure if all programs are quite the same as KiCad, but I really hate how cludgey the interface is for layout. Unless I'm missing some tips and tricks, it takes at least 8 clicks to orient each resistor the correct way. Right click, footprint, flip. Right click, footprint, rotate +.... very annoying after only a few resistors. Oh well, I certainly don't have time to write my own so that's what I have to deal with.

Plans are to finish this layout and start working on some software on the breadboard. I'm pushing it to have it assembled by the January deadline for the contest, so I have to start on that as well.

A few extra notes on this layout. My main goal is only have the thermistors on the top. All other components will be on the bottom so they do not disrupt the air flow. Thermal design is important as well, as the sensors should not be getting heat via the board from other components, or at least not unevenly. With the exception of the divider resistors, nothing else should generate much heat. I will have to be careful with the traces running to power the dividers, as that could generate heat. There probably will be some inequities between the sensors, so hopefully any variations can be accounted for in software.

One more thought, while I want little thermal mass attached to the thermistor so it can easily be heated at low power, I am debating putting some bare copper pads for extra heat dissipation ability. I will probably just stick to the normal pads I have now, but thats possibly a future sensitivity improvement method.