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Participant

Join Date: Sep 2007
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Traffic Light Sequence

09/20/2007 3:41 AM

I need to remotly prempt the automatic sequence of a traffic light. Do I need to be helped with a circuit or how does it do this?

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#1

Re: traffic light

09/20/2007 4:04 AM

So you can scoot off immediately it goes red+amber, perhaps, instead of waiting for green? Wow! You could deliver more pizzas!

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#2

Re: traffic light

09/20/2007 5:12 AM
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#3

Re: traffic light

09/20/2007 6:15 AM

OK. It's a time-driven sequence. If you've got nothing better to do than watch traffic lights change, get down to your local one with a bottle of something alcoholic to keep the cold out and a stopwatch, and see what you can make of it all. Santa Pod Raceway might be interested in your findings.

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#4

Re: traffic light

09/20/2007 6:53 AM

Programming a traffic light sequence was one of the first tasks in the UK training programme for the Allen Bradley 2/30 PLC back in 1983.

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#5
In reply to #4

Re: traffic light

09/20/2007 7:58 AM

And it was the first thing this mech eng did in her night school "Basic electronics for Clankies" course that her sponsoring company sent her on. It's in machine code, if you want it...

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#11
In reply to #4

Re: traffic light

09/21/2007 9:31 AM

I remember doing that in school with a PIC. Don't remember the number though.

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#12
In reply to #11

Re: traffic light

09/21/2007 9:55 AM

Are you sure you're sad enough to be a member of this forum?

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#6

Re: Traffic Light Sequence

09/20/2007 10:42 AM

I think our friend here is asking how he can change the traffic signal himself, while sitting in his car at a red light. I know there are systems in place here in the U.S. that allow this to be done, for the purpose of emergency vehicle traffic. The last civilian who figured out how to do this is resting quietly, in jail. I hope you don't live in my home town .

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#9
In reply to #6

Re: Traffic Light Sequence

09/21/2007 3:51 AM

in my hometown there are no jails actually i am looking out for how to interface the remote controller to the TLC so that a traffic warden could use the remote ctrl to fett traffic by his intervention in the automatic sequence

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#10
In reply to #9

Re: Traffic Light Sequence

09/21/2007 6:36 AM

either wireless or wire inferface can be, but you have to know the prototype provided by offer. to see if they would leave a common key?

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#7

Re: Traffic Light Sequence

09/20/2007 11:58 AM
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#8

Re: Traffic Light Sequence

09/20/2007 12:02 PM
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