Search found 36 matches

by Dave Britten
Wed Sep 05, 2018 5:48 pm
Forum: DM42
Topic: Key Bounce
Replies: 3
Views: 350

Re: Key Bounce

I wish I knew! It's somewhat better after softening up my keyboard, but it definitely still happens.
by Dave Britten
Mon Aug 20, 2018 12:41 pm
Forum: DM42
Topic: Key Bounce
Replies: 3
Views: 350

Re: Key Bounce

There's nothing currently, but I agree that it's needed. And it should be a per-key delay so as not to affect quick inputs of multiple keys in sequence. i.e. have an in-memory array with one element for every physical key, and record the CPU tick count of the last press, then ignore repeat presses o...
by Dave Britten
Thu Aug 16, 2018 6:47 pm
Forum: Hardware issues
Topic: Need a replacement LCD
Replies: 5
Views: 517

Re: Need a replacement LCD

MikeD wrote:
Wed Aug 15, 2018 12:46 am
Try to do that with a TI or HP calculator! Yea Swiss Micros!
No kidding! I'd probably still be trying to get it installed. :D I always appreciate user-serviceable electronics.
by Dave Britten
Tue Aug 14, 2018 6:05 pm
Forum: Hardware issues
Topic: Need a replacement LCD
Replies: 5
Views: 517

Re: Need a replacement LCD

UPDATE: Michael was able to sell me a new screen assembly. It only took me a few minutes to do the swap, and everything is working fine now. Hooray!
by Dave Britten
Wed Aug 08, 2018 3:24 pm
Forum: Usage tips, tricks and problem reports
Topic: Will the DM42 have a print option like Free42 on android?
Replies: 3
Views: 341

Re: Will the DM42 have a print option like Free42 on android?

That would be a cool feature to have. You could always save the printout as HTML, and use image tags with "data:" URLs to embed the graphical portions.
by Dave Britten
Mon Jul 23, 2018 12:12 pm
Forum: DM42
Topic: Question on solver programs vs regular programs
Replies: 5
Views: 428

Re: Question on solver programs vs regular programs

That's a good idea, Meino. I've got a few I should probably do that to.

As far as naming convention, I'd suggest looking through the various special characters and picking one to use as a prefix on the label name to indicate "this is a solver program".
by Dave Britten
Thu Jul 12, 2018 5:50 pm
Forum: Hardware issues
Topic: Need a replacement LCD
Replies: 5
Views: 517

Re: Need a replacement LCD

The ribbon cable is definitely knackered in my case. That doesn't rule out an issue with the connector, of course, but I do know I need a new LCD assembly.
by Dave Britten
Wed Jul 11, 2018 1:46 pm
Forum: Hardware issues
Topic: Need a replacement LCD
Replies: 5
Views: 517

Need a replacement LCD

I think opening the calculator to work on the keyboard response has taken its toll on the LCD ribbon cable. I'm getting very intermittent behavior from the screen (partial updates, blank/fading screen, etc.). I'm guessing I need to buy a new one, but I'm not an expert at sourcing components like thi...
by Dave Britten
Sun Jul 08, 2018 12:14 pm
Forum: Hardware issues
Topic: buttons that don't register well
Replies: 171
Views: 19510

Re: buttons that don't register well

It feels about the same as the rest of the keyboard, but given that there's still some slight variability among the keys (my Rdown requires more force than TAN, for example), it's difficult to say on which side of the mean Enter now lies. It feels a hell of a lot better than when I got it, though.
by Dave Britten
Sat Jul 07, 2018 8:40 pm
Forum: Hardware issues
Topic: buttons that don't register well
Replies: 171
Views: 19510

Re: buttons that don't register well

Dave, Are you saying that after applying Ceaser's fix your Enter key needs same force to register as all the other keys? Thanks, Qualitatively speaking, yes (I don't have anything to measure the exact force). But the important part is that after flexing the key hinges and then inserting the Post-It...