HP Forum Archive 21

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wp34s crystal kits -- don't worry Message #1 Posted by David Griffith on 16 Apr 2012, 12:22 a.m. For those of you who requested crystal and cap kits from me for your wp34s calculators, don't worry. I have your requests. I'm waiting for crystals to arrive from China and it seems like they're taking their dear sweet time about it.

Re: wp34s crystal kits -- don't worry Message #2 Posted by Geoff Quickfall on 16 Apr 2012, 1:20 a.m., in response to message #1 by David Griffith Hey David! If you have an extra set, it is time for me to get on to the 34s bandwagon. Looking forward to the ir printer option also. Geoff

Re: wp34s crystal kits -- don't worry Message #3 Posted by Marcus von Cube, Germany on 16 Apr 2012, 2:54 a.m., in response to message #2 by Geoff Quickfall Geoff, I have some spare crystals and caps. I can get them from a local electronics store not for from home. :-) So if you need some, I can trade them for a bottle of Ahornsirup (maple juice) next time you are near me. Still thinking about controlling an IR printer...

Re: wp34s crystal kits -- don't worry Message #4 Posted by Paul Dale on 16 Apr 2012, 2:58 a.m., in response to message #3 by Marcus von Cube, Germany Still wanting extra SPI memory :-) If we're going to add hardware, lets add everything we can reasonably add... - Pauli

Re: wp34s crystal kits -- don't worry Message #5 Posted by Marcus von Cube, Germany on 16 Apr 2012, 6:01 a.m., in response to message #4 by Paul Dale Then everything should go on a single custom board that only needs a few wires connected and maybe a cutout in the case. This will then be the 34SX.

Re: wp34s crystal kits -- don't worry Message #6 Posted by David Griffith on 16 Apr 2012, 4:19 p.m., in response to message #5 by Marcus von Cube, Germany If you're going to do that, perhaps spending some time with the question of how to fasten down the board after swapping it would be a good idea. Would substituting the LCD for something more dotmatrixy be possible?

Re: wp34s crystal kits -- don't worry Message #7 Posted by Walter B on 16 Apr 2012, 4:33 p.m., in response to message #6 by David Griffith Quote: Would substituting the LCD for something more dotmatrixy be possible? I'm afraid it would not. The processor can drive the number of graphic elements as given on the present LCD, definitively not a single pixel more. For more, another architecture is required ... -> 43S.

Re: wp34s crystal kits -- don't worry Message #8 Posted by Marcus von Cube, Germany on 16 Apr 2012, 4:58 p.m., in response to message #6 by David Griffith I'm not thinking of a complete board swap, just an add-on board with a few components. Walter has already explained that we will not be able to add a substantially better display without an embedded controller which would demand a larger battery which ...

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