Validate pcb

[dinix64]

Validate Kicad drawings are OK
schematics, PCB, etc

[afonsus1997]

• Suggestion to create a single net for all ground connections. Although they are internally all connected on the arduino, this will prevent noise from having separate ground loops.
• Suggestion to move to gnd planes instead of individual gound connections made from tracks.
• I think theres a bug in this part of the schematic image. The heating element is in series with the fan power. I think it should be like this image.

[dinix64]

I will open a bug and create a branch for version 1.1