#HP 42S RPN SCIENTIFIC CALCULATOR FULL#

Then again, the schematics are there so maybe someone will lay out a nice HP41-specific board. We were a little sad that the kit is in an HP15-C like landscape orientation unlike the HP41вЂ™s portrait format.

What we really liked, though, was the 3D printed cases you can download for the calculators. The display is also backlit, something we all wanted in the original.

The machine also has over double the memory the original calculator had along with a real-time clock built-in. As you might expect, this version uses a through-hole ATMEGA328 and even at 8 MHz, the emulation is faster than the original calculator. You can see the device in action in the video below. In fact, the HP emulator will also act like an HP15C or 16C, if you prefer. DidnвЂ™t have one? DonвЂ™t worry, you can now build your own. It really was a little hand-held computer. If youвЂ™ve ever had one, you know that is a marvel of the dayвЂ™s technology with alphanumeric capabilities and four plug in ports for more memory or ROMs. The HP41C was probably the pinnacle of that trend. But there was that awkward time when calculators were very important and computers were very expensive that calculators tried to be what we needed from full-blown computers.

#HP 42S RPN SCIENTIFIC CALCULATOR FULL#

If you really need serious number crunching, youвЂ™ll turn to a full computer.

Sure, calculators are still around, but you are more likely to use your phone. Then there was a time when we all carried calculators. There was a time when engineers carried slide rules.

Hp 42s rpn scientific calculator