One such programmable calculator, a Casio PRO fx-1 with magnetic card storage, came across [amen]’s bench recently. Sadly, it didn’t come with any cards, so [amen] reverse engineered the card ...

When [johnkimdinh] found a way to add an ESP8266 to a scientific calculator ... around it’s a Kenko FX-82M calculator which appears eerily similar to the Casio FX-82M. In his video ...