Hi
I started this new post not mix it up Ken's question as it can confusing.
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Originally Posted by nvocc5:
I started this new post not mix it up Ken's question as it can confusing.
I agree. I'm confused already! 
I think your question or problem got cut off? 
If Stan is confused than I know I am in trouble.
However, I do have a crossing gate that I would also place on the IR circuit to active it.
I also purchased AXIOM RELAY V23026A SPDT 5VDC PC MOUNT item#381441676844 to hook up the AC part of the circuit. I just have not figured out how to hook it up to the IR circuit.
Not sure exactly what you have and what the "loose" AXIOM 5V relay is for. I don't know what you mean by "AC part of the circuit."
He is what mean by the A/C part of the circuit. I would like to use the IR part of the circuit to active a 5 VDC relay. When the IR detect a train it energized the 5 VDC relay. The relay itself uses 5VDC however the NC, common and NO would be 18 V AC hence the AXIOM 5 V relay. I was hope to use the IR to trigger the Maiden Rescue or other track accessory. I also have Coal shed No. 97 and the barrel loading accessory that I was hoping that I could IR circuit trigger these events as well.
As I have demonstrated before I have great ideas but I lack the skill and know how that you yourself and the electronic gurus have to make the project a reality but I am willing to learn.
This is in the idea stage and suggestion, comments or guidance is welcomed.
Kris, exactly which IR circuit are you using?
Most of the IR circuits I've proposed include one of those 99 cent eBay relay modules. The relay on the module can switch 18 VAC (or whatever) to your accessories.
Hi Stan
This the circuit I came thinking of using.
The relay on the existing 5V relay module can switch your AC accessory voltage as shown. I believe you have AC-to-DC buck regulator modules which supply the DC voltage for the IR circuit. A single buck regulator module can supply 5V DC to multiple IR circuits if that makes wiring simpler.
Per discussions in other thread, note that the "-" of the 5V DC supply is NOT the same as either AC power signal.
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Boy I am I glad I meet you Stan you make thing so clear and simple.
Hi Stan
Sorry about the on and off again with this issue. Having 4 year old and a solder iron do not mix very well. I need your help again. Here is a picture of how far I gotten with this project. I am not sure how to hook up the oscillator/timer module into the above circuit. The To-92 leg E is connected to relay in. However oscillator/timer module out is also to connected to the relay in.
Are they both right or am I just very confused? Any comments, suggest or advise is welcomed.
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The circuit from your post of 10/27 is a $3 DIY version of an ITAD. Like an ITAD, there is a relay with an NO and an NC output connection. The transistor you mention is indeed connected to this DIY circuit for the purposes of creating a time-delay.
An ITAD typically activates an accessory such as a crossing flasher circuit. A crossing flasher circuit is shown in your latest post. This is a separate circuit from the ITAD circuit. It takes 5V and generates alternating 5V pulses to drive, say, lamps on a crossing gate.
So there are two separate circuits, 1) ITAD, 2) crossing flasher. In this case both circuits happen to use one of those 99 cent relay modules. That may be part of the confusion; they are separate relay modules!
If you confirm exactly what kind of crossing lamps you plan to use, what voltage they are, or if LEDs then what configuration, etc., then I will draw one big circuit that combines the two.
Hi Stan
Thanks for the reply. I want to use your IR circuit design using two IR to active the following:
One design to active Lionel 154/Marx using AC to power the bulbs.
Another design power active Lionel 154/Marx using DC to power the LED bulbs, 12 VDC to power the bulbs.
Kris, unfortunately the flasher circuit shown above was switching of 5V between the alternating lamps. To drive your higher voltage AC/DC it gets a bit more involved requiring another 99 cent relay module. Here's a collage of various circuits that shows the 99 cent module approach. There have been postings showing DIY flasher circuits that can drive bulbs without relays but by the time you gather the transistors, capacitors, etc. and solder it up I think you're better off using the eBay module approach.
You should be able to click on this photo to get better resolution. The same circuit can handle either your AC or DC flashers.
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First thank you so much, I can not thank you enough. I have looked over the diagram and it make sense. I do have one question for you. On the ITAD relay and the top flasher relay on the NC terminal has a green line but no instructions and they both are not wired to anything. My question is so they are not wired to anything correct?
Correct. The short green lines on those 2 NC connections are not used.
Thank you again. If you are ever on the East Coast attend one the shows in the NYC area let me know, please. I would like to thank you personally for all the help you have provide me with this problem.
Eureka it works!
Nice. Hard to describe that moment when you turn on something you've built ... and it works! 
BTW, on the 555 timer module you can adjust the ratio of on-to-off timing (a.k.a. duty-cycle) using the blue trimmers. In the video the right lamp looks like its duration is maybe twice that of the left lamp. If it matters you can adjust it so left and right flash for about the same time each.
Hi Stan
Thanks Stan, I knew about the problem with the flashing I justed adjust it now. Now I am going to add the MP3 player and the relay for the crossing gate. I was thinking of adding a 4th relay off the ITAD trigger the MP3 and the crossing gate, unless you have a better idea.
As I recall, the MP3 circuit simply operates on 5V DC. That is, apply 5V and it starts playing. In other words you want 5V DC that switches on when the ITAD turns on. Well, you have that already on your circuit at point "A" in the diagram (note polarity red for +, black for -). The left relay module supplies 5V at its "NO" contact when the ITAD is active.
As for the crossing gate, I'm assuming it operates on 14V accessory voltage? That is, apply 14V and the gate goes down. In other words you want 14V that switches on when the ITAD turns on. Well, lucky you again! You have that already on your circuit at point "B" in the diagram. The upper right relay module supplies the higher lamp voltage (12V/14V) when the ITAD is active.
Note that the return or "-" sides of the voltages to the MP3 player and the crossing gate mechanism are different signals and should be connected as shown.
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Thanks Stan! I had an idea but I was not 100% sure how to wire it, thanks for the road map.
Hi Stan
I read the thread about Lionel scale semaphore. Is there a way to hook up a Lionel scale semaphore to this type of set up or does it need a complete different set up?
