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RPN Calculator ( Like the old HP calculators ) – 3D printable model from Thingiverse Thingiverse

RPN Calculator ( Like the old HP calculators )

by jimlee
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I wanted a RPN calculator like the old Hewlett Packard ones. So I made my own.

Here's a link to the writeup with instructions for building your own: http://leftcoast.biz/iWeb/Left_Coast/The_calculator.html

A link to it running : https://www.youtube.com/watch?v=s-vngUi7-kw

The touchscreen : https://www.adafruit.com/product/1947
The power system : https://www.adafruit.com/products/1944
The power switch : https://www.adafruit.com/products/805
The battery : https://www.adafruit.com/produ
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Thingiverse
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