This year I’ve decided to devote 10 minutes a day to working on model railroading. My first post was on FaceBook Live so not sure how to share that here but the next three are online there as well as on YouTube. 
 

We've turned the corner into a New Year! Time to share your latest workbench and layout progress as we kick off January.

Eric

Eric Hansmann
Editor-at-Large, Model Railroad Hobbyist
Follow along with my railroad modeling:
http://designbuildop.hansmanns.org/

So, I'm installing a power bus (no data transfer) for Arduino, et. al. and would like to mix both Uno and Nano building lighting and other functions. Uno will accept 3-12 volts (and regulate) while the Nano accepts 6-20 volts (and regulate). Also want to use Trinket which is 3-6 volts. (voltages corrected with an edit to this post)

My question is, can I run a 6 volt bus to power all types of devices, or should I run two separate ones. One 6 volt for the Trinket and a 9 volt for Unos and Nanos? What are the drawbacks to using only one?

     I saw these personalized Throttle holders on Luke Lemmons Facebook page. I thought to myself," I could use some of these," so I contacted Mike Polsgrove of Soo Parts fame and asked if He would come up with a design I had in mind. The next morning, Mike had a view for me in CAD. Later that evening he was printing up my throttle holder order. Four days later they arrived unpainted. I picked these up in the mail Friday, I bought some rattle can paint and some #6 pan head 1/2 inch sheet screws for mounting these to the layout.