Finally recycled all the parts.  There wasn't any place to store most of the parts, but there was a desire to see the entire weather wall again.  A lot of time was spent developing the algorithm to sense the LED & emulate button presses to keep the 3 transducers alive.  Doing all 3 on a single microcontroller was a GPIO abstraction buster.

Stored a batch of transducers in various states of disrepair.  They were a big thing for a while.  Then the world discovered how humid it really was, how much scale they deposited, how unreliable they were.  Hard to find any redeeming qualities now.  There have been other big misses.  Something like this, 20 years ago, would have consumed years of effort.  3D printing & development tools cut most of the development down to manely July of 2021.  There was another big push in Sep of 2022.