The hardware for the system consists of a TI-84 graphing calculator, a few bits and bobs in the way of components, and an Arduino Pro Mini powered from the USB port on the calculator.

There’s a good Arduino library, and when you have that, you can easily port it to a graphing calculator.

The iconic TI-84 calculator now comes in rose gold, and hot damn I want one Texas Instruments is stepping up the graphing calculator game.

Free, open-source mod lets TI graphing calculator make sweet 1-bit music HoustonTracker 2 turns your calculator into a surprisingly capable sequencer.

Windows 10 Build 19546 includes a special Graphing Mode for Windows Calculator that looks surprisingly nice.