Arduino Uno Rev 4

While I managed to load the first layer of an A.s.a. H. light program* onto an Arduino Mega** the Arduino Uno Rev 3 proved inadequate for an even lighter version than this. According to its specs the new Arduino Uno Rev 4 should be adequate, however, and so I've bought a couple of these to try out.  

* Essentially the code of my 14 May 2012 blog but with input and output through the Arduino gpio and having inputs accepted whenever one or more of the inputs change significantly: | new In(N) - old In(N) | > (C)( old In(N) ).

** See my blog of 1 January 2023.