Calculators

Complete redesign and new address in progress... (ASkr, 8/2009)

TI-92+:
I2C
A case study on how to implement an I2C (software!) interface for the TI-92x (and may be TI-89, too). No interface required!
HP48/50:
E248
A kind of a best match E12/24/48/99 resistance ratio calculator. RPL.
Dummy As the name implies, just a placeholder...
PC-1500:
3s
A 3s (stupid, simple, slow) interface for Sharp PC-1500. Basic controlled.
PC-1500/1600:
stuff
I still use them, sometimes.