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

For his Hackaday Prize entry, [Alex] figured a regular ‘ol graphing calculator was sufficient to run a complete DMX controller, and with the help of an Arduino, figured out a way to do it.

A home-brewed graphing calculator called Open SciCal promises to put a powerful machine built entirely from open-source hardware into the pockets of quant jocks and statisticians. "This is for the ...