CALCnet 2.2 is a robust networking protocol and driver for two-wire devices, designed especially with timing for 6MHz TI graphing calculators. It is the culmination of a long-running, occasional project of mine dating to at least 2000, to allow more than two calculators to communicate at once. The final published version was demonstrated to work properly on networks of nearly a dozen calculators, and has also been tested on networks fragmented across large geographic areas.
