Cool. Good option for temperature display. on four digit it can even display quite intelligible flowing messages, as one of my friends shows me these days.
best wishes, Vasile On Wed, Aug 30, 2017 at 10:05 AM, Matt Schinkel <mattschin...@hotmail.com> wrote: > I did make it a new library as the current lib is good as it is. I got it > running last night using a timer interrupt switching 3 displays. > > I have it set at 100hz switching at the moment, but the user may choose > another freq if they desire. I'll test other freq. > > It's quite nice as i need a tiny display for a 3 digit high temp > thermometer. > > Sent from my iPhone > > On Aug 30, 2017, at 1:04 AM, Vasile Surducan <vsurdu...@gmail.com> wrote: > > Matthew, > I think you do not need a new library for that, however a new library is > always good for someone/something. > Multiplexing is time dependent by the application you run. The simplest > way is to sweep the anode/cathode and keep them powered for about 1...3mS > (depends if it's normal or superbright display and the current you supply > for it) > > One quick and dirty example using delay library is here: (the source at > the end of the paper): > https://www.researchgate.net/publication/266860236_ > Increasing_the_efficiency_of_IO_usage_in_small_embedded_systems > > However, in time dependent applications (like frequency measurements > around 50MHz) using software delay for digit display is a waste of time, so > the library should look different. > > good luck, > Vasile > > > > > > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon> > Virus-free. > www.avast.com > <https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link> > <#m_6970237799005747947_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > > On Wed, Aug 30, 2017 at 3:56 AM, Matthew Schinkel < > mattschin...@hotmail.com> wrote: > >> I guess I didn't look close enough. The library does support anode >> displays. >> >> Anyways, I'm working on a multiplexer lib so I may run more then one >> segment. >> >> On Tuesday, August 29, 2017 at 7:09:51 PM UTC-4, Matthew Schinkel wrote: >>> >>> Hi Guys, >>> >>> The seven segment library currently only supports cathode displays. I'll >>> be adding support for anode displays by adding a user constant, and >>> inverting the output of seven_from_digit() procedure. >>> >>> Matt. >>> >> -- >> You received this message because you are subscribed to the Google Groups >> "jallib" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to jallib+unsubscr...@googlegroups.com. >> To post to this group, send email to jallib@googlegroups.com. >> Visit this group at https://groups.google.com/group/jallib. >> For more options, visit https://groups.google.com/d/optout. >> > > -- > You received this message because you are subscribed to the Google Groups > "jallib" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to jallib+unsubscr...@googlegroups.com. > To post to this group, send email to jallib@googlegroups.com. > Visit this group at https://groups.google.com/group/jallib. > For more options, visit https://groups.google.com/d/optout. > > -- > You received this message because you are subscribed to the Google Groups > "jallib" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to jallib+unsubscr...@googlegroups.com. > To post to this group, send email to jallib@googlegroups.com. > Visit this group at https://groups.google.com/group/jallib. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "jallib" group. To unsubscribe from this group and stop receiving emails from it, send an email to jallib+unsubscr...@googlegroups.com. To post to this group, send email to jallib@googlegroups.com. Visit this group at https://groups.google.com/group/jallib. For more options, visit https://groups.google.com/d/optout.
