RPN hp20s and lcd hp34c proposals Message #1 Posted by Jose Poyan on 28 Apr 2011, 6:05 p.m.
Thanks to those who made possible the project wp34s. I would have contributed myself with something if my knowledge on computing would have been a little above zero :) but it's not the case. However I have had for years a couple of ideas in my head related to the display and I'd like to mention them now, so you can give your opinion about it.
As everyone knows, the last series made by Hewlett Packard when till independent, the Pioneer, did not include a RPN model with segment lcd screen. That is to say, the RPN models in that serie used matrix screens. In other words, the RPN version of the HP20S was never produced. I noticed it when I was a kid and I bought my first Pioneer.
And this wasnt natural. In fact all the previous spice models had segment(obviously) led displays. So it would have been a logical step to make a simple RPN calculator with segment display, for example the lcd version of the HP34C.
I have problems to work with matrix displays. I love segment displays, which are clear and sharp, and I like simple calculators. I think it would be a good idea, based on the wp34s, to make a RPN model with Segment display by avoiding the use of the matrix section on the screen of the hp30b.
It would cover a niche and the project would be almost straight forward! By this I mean that the layouts are already there: the HP20s and HP34C keyboards. And the manual doesnt need to be written; it was written decades ago: the HP34C manual.
What's your opinion?
jose poyan
