Having muddied the water with my previous comment about Bluerail (and my confusion...), I think I can clarify it a bit as I did get an email response from Blue rail.  Here's the link he sent me:  http://deadrailinstalls.com/blue-rail/ which shows several boards.  If you want to supply AC track power, then there is a 2 amp board with an AC to DC converter included, for $105.  There's also a 5 amp board for $140. You select between DCC and not DCC with a jumper.  In the latter case, it looks to me like the board then provides motor control (speed and direction) and some capability for controlling lights.  The boards talk to a bluetooth-based control app that can be used on an iPhone/iPad (no mention of an android device). It does look to me like there are some speed control setting parameters that can be adjusted via some settings (independent of using DCC I think).  Again, my read of the website leaves me a bit uncertain.

I note that these boards are capable of being used with a DCC system, so I guess one could think about upgrading later.  I'm no expert on DCC.

There have been several recent (and learned) discussions about using bluerail/deadrail systems here on OGR, e.g.: https://ogrforum.ogaugerr.com/...2-engineering-sample

- Rich