Ok, so it's written in C++ but hey ...

https://github.com/zooxo/iv

Based on an Arduino Pro Micro (ATmega32U4) but a UNO or NANO should work too.

Youtube video here:

https://youtu.be/m1aFRhqvuLM

There's also a smaller version for an ATtiny85:

https://github.com/zooxo/ivt

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On Sunday, March 12, 2023 at 11:55:27 AM UTC-4, dxforth wrote:

Ok, so it's written in C++ but hey ...

https://github.com/zooxo/iv

Based on an Arduino Pro Micro (ATmega32U4) but a UNO or NANO should work too.

Youtube video here:

https://youtu.be/m1aFRhqvuLM

There's also a smaller version for an ATtiny85:

https://github.com/zooxo/ivt

Cute. Impressive even. I haven't used a hand held calculator in years and years. I used to have one in the car to calculate gas mileage, but the car does that for me now.

I have an RPN calculator on the computer that I use often. It works very well, and allows user programmable keys. But it is not maintained by the author anymore and needs a few UI improvements. The help stopped working with Windows 7 or something,
that's on Microsoft though. But I can't control the size of the fonts and they have gotten very hard to see as I've gotten older. I did contact the author a couple of times. He's a nice guy, but is not remotely interested in doing any changes and won'
t release the source. Too bad. I would like to fix the UI issues and be able to use it for another couple of decades.

Excalibur 2.01

--

Rick C.

- Get 1,000 miles of free Supercharging
- Tesla referral code - https://ts.la/richard11209

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Lorem Ipsum schrieb am Sonntag, 12. März 2023 um 19:19:53 UTC+1:

On Sunday, March 12, 2023 at 11:55:27 AM UTC-4, dxforth wrote:

Ok, so it's written in C++ but hey ...

https://github.com/zooxo/iv

Based on an Arduino Pro Micro (ATmega32U4) but a UNO or NANO should work too.

Youtube video here:

https://youtu.be/m1aFRhqvuLM

There's also a smaller version for an ATtiny85:

https://github.com/zooxo/ivt

Cute. Impressive even. I haven't used a hand held calculator in years and years. I used to have one in the car to calculate gas mileage, but the car does that for me now.

I have an RPN calculator on the computer that I use often. It works very well, and allows user programmable keys. But it is not maintained by the author anymore and needs a few UI improvements. The help stopped working with Windows 7 or something, that'

s on Microsoft though. But I can't control the size of the fonts and they have gotten very hard to see as I've gotten older. I did contact the author a couple of times. He's a nice guy, but is not remotely interested in doing any changes and won't
release the source. Too bad. I would like to fix the UI issues and be able to use it for another couple of decades.


FWIW there is a cute HP15C calculator online simulation: https://free15c.com/web/hp15c.html

Hit CTRL-pluskey on your keyboard to enlarge it to suit your eyesight

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On Sunday, March 12, 2023 at 4:04:46 PM UTC-4, minf...@arcor.de wrote:

Lorem Ipsum schrieb am Sonntag, 12. März 2023 um 19:19:53 UTC+1:

On Sunday, March 12, 2023 at 11:55:27 AM UTC-4, dxforth wrote:

Ok, so it's written in C++ but hey ...

https://github.com/zooxo/iv

Based on an Arduino Pro Micro (ATmega32U4) but a UNO or NANO should work too.

Youtube video here:

https://youtu.be/m1aFRhqvuLM

There's also a smaller version for an ATtiny85:

https://github.com/zooxo/ivt

Cute. Impressive even. I haven't used a hand held calculator in years and years. I used to have one in the car to calculate gas mileage, but the car does that for me now.

I have an RPN calculator on the computer that I use often. It works very well, and allows user programmable keys. But it is not maintained by the author anymore and needs a few UI improvements. The help stopped working with Windows 7 or something,

that's on Microsoft though. But I can't control the size of the fonts and they have gotten very hard to see as I've gotten older. I did contact the author a couple of times. He's a nice guy, but is not remotely interested in doing any changes and won't
release the source. Too bad. I would like to fix the UI issues and be able to use it for another couple of decades.

FWIW there is a cute HP15C calculator online simulation: https://free15c.com/web/hp15c.html

Hit CTRL-pluskey on your keyboard to enlarge it to suit your eyesight

Yeah, looks nice. But I don't see conversion constants. Excalibur has a whole page of buttons for conversions, 36 keys! Very useful... if you can read them.

Maybe I'll write my own in Forth someday. But I've yet to find a Forth with good UI control... not that I've looked at every single one.

--

Rick C.

+ Get 1,000 miles of free Supercharging
+ Tesla referral code - https://ts.la/richard11209

--- SoupGate-Win32 v1.05
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On 13/03/2023 5:19 am, Lorem Ipsum wrote:

I have an RPN calculator on the computer that I use often. It works very well, and allows user
programmable keys. But it is not maintained by the author anymore and needs a few UI improvements.
... I did contact the author a couple of times. He's a nice guy, but is not remotely interested in
doing any changes and won't release the source. Too bad.

Source code is like the runic parchment in the Tourneur film 'Night of the Demon' -
pass it on before the devil comes to claim it. The guy might be doing you a favour.
Always suspected there was something diabolical about GPL :)

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