Tag Archives: Arduino

WiThrottle and DCC++

One of the major design points for my shelf switcher layout is a compact way to power it.  Well, I pretty much have that ready now.

I put together a DCC++ Base Station using an Arduino MEGA board, an Ethernet shield and a Pololu MC33926 motor shield, then I added a TP-Link TP-WR802N pocket router for wireless connectivity.  I then worked on the software a bit, and added the ability for the DCC++ Base Station to communicate with the WiThrottle (or Engine Driver if you’re Android) app on my iPhone.

Now, when I install this in the shelf layout, I’ll be able to control the trains from my phone for a pretty low price…

Here’s a video of the gear in action…

Office Shelf Inglenook

Every day I go into the office, and there’s a shelf above my desk… it’s about 13″ deep and 48″ long.  I have some “stuff” on it, but it’s largely unused… from time to time, I look up and wonder what I could do with that space…  and I have some leftover turnouts and bits of track from the main layout construction…

Here’s my most recent thought… an Inglenook puzzle in N scale!

The Inglenook is a classic switching puzzle.  The three yard tracks hold 3, 3, and 5 cars each, and the lead track is just long enough for a locomotive + 3 cars. The goal is to arrange 5 randomly selected cars (out of 8) in a particular order on the main track while working within the limited space available… and it just so happens that my shelf is just long enough to do this in N scale.

Since my main layout is modern day and eastern, I might instead go with an older time frame and something Southwestern or Pacific Northwest.  Maybe early BN or even steam era.  I’m rather fond of the BN green/white color scheme, and this might be a good excuse to pick up an older SW unit in those colors.

My thought at the moment is to construct a 13x48x1″ box of some nice hardwood and fill the inside with extruded foam.  The track would be ME Code 55 flex and Atlas #5 turnouts (because I have spares).  The scenery shown here is just for illustrative purposes, but I do have a spare plate girder bridge that would go nicely.

Due to the way the shelf is constructed (modular furniture) there will be about 3″ of space behind the layout backdrop that could be used for storage or to house the power pack.  I could even make the thing wholly self-contained, with throttle controls directly mounted in the fasica.

Power would be DC, most likely, though I might consider getting an Arduino and using DCC++.  Since it’s a workplace setting I would not want to leave anything complex or expensive, and since there is only one operating locomotive, there’s not much need for DCC unless I want sound.  I could provide a power jack in the fascia for a power connection, so the throttle / power pack would not need to be hooked up full time, and I could even possibly incorporate an under-table sound decoder for layout sound (again with a headphone jack in the fascia.

Another benefit of a “side project” like this is it gives me an opportunity to practice some scenery techniques before applying them to the main layout.  If I make mistakes here, it’s easier to correct.

When will this all go down?  Probably not until later in the spring when the weather is nice enough to do woodwork in the garage… and I get just a little bit farther with the main layout.