@Dan_Lumbard check out one of my first posts on this forum. I’m a long time computer nerd and I found myself being just as thick as the next guy 
basically create the device handler but don’t forget to add a DEVICE not handler which uses the new driver/DTH/device-type-handler ---- now you should see the new device in SmartThings on your phone/tablet and as long as you assigned the correct DTH to it, it should look like my sample screenshots.
@DITPL you don’t like my project box picture from the first post… well I think it’s gorgeous small plastic project boxes from China — bought three of them. 1 in my garage, 1 doing my TV/cable remote control in the master bedroom and 1 more spare/future project box left. They were cheap and good enough size for what I needed at about $1.75 per box. Search eBay or Amazon for this “Electronic Project Box Clear” and please post the final project when done. I posted mine but nobody cares to show off I guess.