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<H3> Step 1: schematics </H3>
<p>
<i>The schematics is usually the single source of all logical information:
footprints, refdes and values and connections (networks or nets).
A project is just a directory that holds at least the schematics, but
usually also the pcb layout file and scripts.</i>
<p>
Start the new project by creating an empty directory. Draw
the schematics with any schematics editor supported by pcb-rnd and
save it in this new directory. On the schematics
place the following symbols and edit/add these attributes:
<ul>
<li> 7805, footprint=TO220, refdes=U1
<li> 2 pin connector, footprint=connector(1,2), refdes=J1
<li> 2 pin connector, footprint=connector(1,2), refdes=J2
<li> polarized capacitor, fooptrint=rcy(200), value=100uF, refdes=C3
<li> capacitor, fooptrint=acy(200), value=100nF, refdes=C1
<li> capacitor, fooptrint=acy(200), value=100nF, refdes=C2
<li> gnd
</ul>
<p>
Arrange and connect the pins as shown below.
<p>
<img src="sch.png" alt="schematics">
<p>
<h3> Step 2: export the netlist as needed </h3>
<p>
Depending on the schematics capture software you choose, you may need to
export a netlist that can be imported in pcb-rnd.
<p>
TODO: create a pool node on this
<h3> Step 3: lay out the board </h3>
<p>
Please follow <a href="../16_tdx_netlist/index.html#step2"> the tEDAx netlist
tutorial from step2 </a> for laying out the board.
<h3> Step 4: updates: forward annotation </h3>
<p>
If you need to change the schematics later, re-export it from the schematics
editor and re-import it from pcb-rnd. If the format included importing
footprints, all new footprints will be imported. The netlist will be updated.
press {c r} after the import and update the board to reflect schematics changes.
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