peteski,
thanks for the nice comment, very much appreciated.
first let me say that I first made this to be lights only so I had all the lights in flame and poles set to operate when power was turned on. Then a person sort of challenged me to make it more realistic with the sound of a very large burnoff starting up. If you have ever been around a refinery you will know that some times when a process unit "farts and falls by the wayside" the initial light up can sound like a jet engine. I could not resist the challenge so I went to work and this is what I came up with. There may have been easier ways to accomplish the desired result but I wasn't smart enough to figure it out.
1st - I wanted all of the pole lights to be on when layout is powered up, so I had to undo my 3v LED wiring for poles that I had already done. I added another 5 pole lights to the "new" area. I used conductive copper tape on the bottom of the scene for the 3v LED wires.
2nd - I wanted the flare lights and sound to turn on by command and run for a measured time, in this case 2 minutes before extinguishing. I bought an MSD Ignition 12v relay switch, wirelessly operated for that purpose. It controls, on demand, the buck downs on the scene, under the red brick building as well as the MP3 board with TH card. The Player board feeds a 4ohm 3w speaker buried under the small tank. The board manufacturer recommends the 4 ohm 3w speaker. Sounds pretty good although I may adjust sound level ? ?
Here are some images:
Main controller box
Schematic
Controllers on the scene hidden under structures (disregard the -12v)
Schematic
Thanks again for the comment, be well,
Carl
