The brains of the operation is an STM8S103F module, aka the Blue Pill, which is paired with a DS18B20 temperature sensor. [Tim]’s original coaster has one in a TO-92 package embedded in the top ...

It can be a very powerful system. [jephthal] took the excellent Mecrisp Forth and put it on the very inexpensive STM32 “blue pill” board to create a development system that cost about $2.

Bob Dole appeared in its commercials in the '90s, before the blue pill with a funny name entered the public lexicon, impotence was hush-hush. Now there's no getting away from it. In-boxes are ...