NP-41 Emulator (may be)

[Chris Chung]

(12-21-2015 04:34 AM)hth Wrote:  I totally love this display, fantastic!

I am not really looking for a HP41 clone, it takes so much effort in keyboard and connectivity to be useful, and I already have acquired enough HP41s to last me for the rest of my life.

This display would be very useful as an add-on to my BeagleBoneBlacks. I plan to use them in various embedded projects, some HP-41 related. Then just attach some kind of keyboard and I am ready to go!

I am no hardware person, but the MCU on the BBB seems to have various ways to connect displays, so hopefully it will not be a tricky project to interface to it.

To round off, I want to buy about half a dozen of such LCDs.

It will take more than a BBB to drive this display. There are 216 segments and w/ 6Mux you will need 42 pins. You will need a dedicated LCD controller to talk to it, while the BBB can talk to the controller via I2C. But it will definitely make into unique projects.