Raspberry Pi inside NumWorks calculator

[tcab]

I finally got my mini wifi keyboard/mouse delivered from ebay and, with the help of some cardboard and zip ties, a rechargable battery, raspberry pi 3 + 2.8" lcd touchscreen (though other sizes are possible), reconfigured my raspberry pi modular calculator. Now its fully self contained - my previous version required an external mouse and keyboard - no longer. Keyboard is Approx. 14.5 * 9.5 * 2 cm / 5.7 * 3.7 * 0.79 inch. You can run Mathematica for free or Jupyter notebooks (Python math and graphs), also free.

Not as slim as a DM42 or HP Prime, but super powerful and has internet access and the infinite world of usb connectivity. Again, the aim is to build a "calculator" with off the shelf parts only. The current design has a "detachable" keyboard, which is quite nice actually, if you want to detach it.









Next version of this project might use the pijuice battery hat and a larger display. Gotta get it cleaner and slimmer and into a nice case + helpful hotkeys/Fn keys and software.