3 aspect model RR signalling help plse

MrDEB said:

what is this signal driver?
the board I posted has the detection circuit and the 3 led signal circuit.
the strip board idea is a lot simpler than the design I posted. I like the simplicity for ease of construction. Never tried the press and peel but have seen posts using and the pros and cons of using..
I understand that Pulsar is selling their product in the UK at a reasonable price.
I could have made the board design smaller but Angi is a newbi at this so I used wide traces. Looking at your strip board design, it might be easier for her but ??
what software are you using to create the layouts you posted?

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angie1199 said:

Pete

Go to the menu option at the top 'UserCP'

Then click on the 'Edit Email & Password' option

Enter your current password where asked


Thanks Angie,

I think the site is making some changes. It seems to remember me now.

Any thoughts about a PC board design. MrDeb's board is fine. I don't know the measurements but if its small enough then I suggest you use it as a standard for your system. If you don't need a signal controler then just omit those components. As for size I tend to match the size of a PC board to the space availible. It makes the whole project maintainable. There is usually a lot of room under a layout so it makes no sense miniaturizing equipment. I use 4.5 inch square boards and I'm glad I made that decision because as my system's capabilities have expanded I had enough spare PC real estate to add and move things around. It's also nice to not have to use tweezers to remove components when experimenting.

What I sent you is what we in the industry call a 'lashup'. Before we put a design in concrete we use a hacksaw to make a PC board by cutting straight lines into the copper foil. Well after everything worked it was too much trouble to redesign a board so we just etched the lashup. Plan on maintainability and accessability.

Thanks for your help with my password.

Pete

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angie1199 said:

Thanks both of you. I've been trying to get my head around PCB design using various applications. I found one that autoroutes and you can then manually route after if not totally happy. Still in experimentation with that tho'

Will now set to building a 'final' prototype and see what happens. I've added a couple of connectors to my design as aux detectors. These can then be connected to things like auto level crossing barriers and turnouts etc.

Gotta say this is very impressive, actually building something for pennies which costs a fortune in the shops, and it doesn't have to connect to dcc controller.

Thanks again. Will let you know how I get on once I've built one.

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MrDEB said:

a word about auto routers = they sound good but not always the best IMO.
I myself like express pcb. easy to use, draw schematics etc.
hope you can use the design I sent you??

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