RPN Scientific Firmware for the Spikenzielabs Calculator Kit

[securd]

Hi Dave,

The keyboard us certainly useable... the switches are low-cost "clicky" switches, but I haven't experienced any issues with them registering, or bouncing. Compared to actual HP keys they require considerably more force to depress, and the click is harsher. But the unique Spikenzie design is brilliant, in terms of figuring out how to get a key cap over a switch not designed to have a key cap! The punchline is that it is very different from a commercial calculator keyboard, but I have been thoroughly enjoying using it.

Steve.