@PeterF -- Thank you for the comment about the AP mode. I had an oak on the wall for months acting as a web/IR remote control. I accidentally pulled power a couple of times while moving furniture and found it in AP setup mode broadcasting ACORN#### yet still connected to my wifi. I was about to ditch it (also for a zero) thinking if it can't remember a sketch, whats the point, but I clearly didn't understand the difference between safe mode default and safe mode manual only. I'll give that a shot.