nostr:npub1ul8tua30lc5rs6ytqus250kg244vevnaumsdsqfl42cz3n86hhzs04kl35 nostr:npub1vrvcpqkvwyqwcyqsn0537szd5t9g0n9dyzvglw242c5cqh6em98q7797jm 
no software in these beasts - just chips and hard coded logic.

later version had software for configuration, but this didn't drive operation.

odd. can't find any pictures