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Layers
Layers on the schemtic don't really matter too much. Turn all of them on so you can see everything.
1 Top - Top layer of copper for routing and planes
16 Bottom - Bottom layer of copper for routing and planes
17 Pads - Exposed copper of Top and Bottom layers for component mounting
18 Vias - Selectively copper plated holes that connect layers together
19 Unrouted - Unrouted components on the board
20 Dimension - Border of the board
21,22 t/b Place - Where all silkscreen can go
23,24 t/b Origins - The anchor for all parts
25,26 t/b Names - Names of components
27,28 t/b Values - Values of components
29,30 t/b Stop - Areas that should not overlap with other parts
31,32 t/b Cream - Areas where surface mount solder can go
39,40 t/b Keepout - Areas where there should not be anything to account for the real life size of components/mounting
44,45 Drills / Holes - Drills or Holes that go through the board
46 Milling - Special shapes to mill out of the board
51,52 t/b Docu - Lines serving for documentation purposes only; will not show up on the final board
© Pioneers In Engineering
Our designs are open source hardware.
For more information, visit: https://github.com/pioneers/PiElectrical
This is where long guides will be posted aside from everything on the README.
Read up on all this to get a vague grasp on things.