The Clapper

An interesting article in IEEE Spectrum:

 https://spectrum.ieee.org/clapper

I always meant to make one of these for myself (when's that happening, Chuck ?  Real Soon Now).

After looking at the patent, I never realized that the Clapper used a microcontroller !  

https://patents.google.com/patent/US5493618A/  (with source code even !)

That's probably why it was sorta expensive:  19.99 in 1985 ? (per:  https://web.archive.org/web/20131225062910/http://articles.courant.com/2005-02-06/business/0502060305_1_clapper-plugs-auld-lang

That inflates to:

they are still being sold, now they list for $21.99 so not that bad ?

https://www.chia.com/products/the-clapper/

Still, what's the fun in just buying one ?  :)

Best Regards,
Chuck, WB9KZY
http://wb9kzy.com/ham.htm