pcb for laser alarm

[abhishek_jat]

I want to design an pcb based laser burglar alarm,working on IR onr any visible laser. I need pcb design for that

 

[MrDEB]

first need schematic

a pcb is nothing except a sheet of plastic with copper plating.
need a circuit then one can design a pcb for it.
I found pcb express to design.

 

[ericgibbs]

a pcb is nothing except a sheet of plastic with copper plating.
need a circuit then one can design a pcb for it.
I found pcb express to design.

Morning MrDEB,

I think the OP is asking for a ready designed alarm pcb.?

BTW:
on your expresssch dwg program, if you set the 'snap' to a bigger step, it will help to make your connecting lines straight and easier for us to read.

Some of you dwgs are difficult to read, the 4017/555 for example, and I think it might put people off helping.

 

[MrDEB]

have tried but in wrong order

I made mistake of changing the snap AFTER I have started inserting componets.
The snap dosn't come out straight then.
Will do better.

 

[ericgibbs]

I made mistake of changing the snap AFTER I have started inserting componets.
The snap dosn't come out straight then.
Will do better.

dont forget the 'G' button short cut, snap on/off.