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Author Topic: Berko LED signals  (Read 653 times)

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Online njee20

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Re: Berko led signals
« Reply #15 on: October 11, 2017, 08:32:12 am »
Yep Arduino and JMRI a great choice if you have lots of signals to control.

If nothing else the Heathcote modules get very expensive at 15+ per signal.

Offline Bealman

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Re: Berko led signals
« Reply #16 on: October 11, 2017, 09:24:50 am »
What you pay for's what you get.

Otherwise design it all yourself  8)
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Online themadhippy

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Re: Berko led signals
« Reply #17 on: October 27, 2017, 12:45:18 am »
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Otherwise design it all yourself

work in progress



Offline Bealman

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Re: Berko led signals
« Reply #18 on: October 27, 2017, 05:04:43 am »
Ok, I have a basic understanding of the way a 4017 decade counter works, but I'm not sure about the sequence here with the sensors and where they will be located.  :hmmm:
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Online themadhippy

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Re: Berko led signals
« Reply #19 on: October 27, 2017, 11:33:40 am »
As  i said this is very much a work in progress.Each sensor is located at the start of the  protected block, train passes sensor 1 and it steps the first counter on  1 position,( from green to red) the second sensor on the next block triggers the second  counter from green to red,and the first counter 1 step from red to amber and so on along the chain,not shown are the other 2 sensors needed to complete the sequence for 3 sections.
  The thing thats holding things up for the moment is getting the  individul counters to ignore the control signal from further along the chain once its completed its sequence(back to green) until that  counters local sensor restarts the count
« Last Edit: October 27, 2017, 11:35:02 am by themadhippy »

Offline Bealman

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Re: Berko led signals
« Reply #20 on: October 27, 2017, 12:22:31 pm »
Ok... another sensor to reset things?

Or maybe better, a timer, which I believe a lot of this stuff works on anyway?
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Online themadhippy

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Re: Berko led signals
« Reply #21 on: October 27, 2017, 12:57:23 pm »
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a timer, which I believe a lot of this stuff works on anyway?
way too easy, and not realistic enough

Quote
Ok... another sensor to reset things?
That starts to make the interlinking between modules  a  bit more complex.However a thought has come tumbling through the undergrowth,cmos change over switchs maybe the answer,or another dead end.

 

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