I cannot remember how I get to this, but I was surfing the web and ended up in this page talking about the deepest railway station in Japan: http://www.totorotimes.com/doai-station-deepest
Check the page because it has impressive photos. This station is in the Joetsu line, and has one platform at ground level and another at 70 meters under ground, in the middle of the Shin-Shimizu tunnel!!!!
You have to walk 486 steps to get to the platform, you can see the number written:
I haven't been there, but being part of the JR railway network I'll visit it next time for sure!! Looks mysterious and interesting enough.
I think I finally did something that can be useful for others, a new program for Arduino which converts it to an Ouputs Loconet Module plus a Sound Module.
This first version is very simple, you can assign an output number to each of the free pins of Arduino. Pressing the "green" for that output the Arduino pin goes HIGH, and pushing the "red" goes LOW. Using Mosfets or Relays you can drive whatever you want, not just simple led.
You can also assign as many output numbers to as many files you have loaded in your MP3 shield. Each time the output is activated that sound file is played.
There are no more options in this "version 1" program, no pulse outputs nor input pins, but it will be implemented in future versions.
These are the configuration variables (LNCV) that can be accessed and changed from the Intellibox, Uhlenbrock Software or any compatible software like RocRail: