Sample Project Design

This page shows a sample design of Laser Driver Function Module. This module consists of a Laser driving circuit with a hard-logic safety circuit (inspired by Lasersaur's design) along with a Laser Diode driving circuit. This project was designed using the Template Files available on Github.

###Eeschema Shown in the image below is the schematics of the whole module. Along with the OpenCNX 34-pin connector component, this schematics contains two logic chips (AND and NAND), voltage regulator, digital potentiometer, resistor, capacitors and connector pins.

In the schematics, all the connections are made either using connection wires or labels. All of the unconnected pins/terminals are crossed out by placing 'not-connected' flags.

###Associating Components with Footprints
All the components are associated with their respected footprints as shown below.

The footprint has to be same as the component you will order and use on your PCB.

###Pcbnew After generating netlist and associating footprints, run Pcbnew and read the netlist. This will import all the footprints on the PCB layout. Once you arrange all the footprints and connect them with tracks according to your connections in schematics, your design will look similar to the one shown below.

Finally fill out the zones on each side of the board.

Once done with the final design, you can add a logo or text on the silkscreen layer of the board.