On Friday, January 20, 2017 at 12:45:09 PM UTC-8, Soren Kuula wrote: > > Hi - I am a complete newbie to nixies. > I have seen some vids of a nice cross fade in tubes, where the next digit > lights up as the previous one fades out. > > > Crossfading was covered a couple of months ago:
https://groups.google.com/forum/#!topic/neonixie-l/bh7kymv2xQA <https://groups.google.com/forum/#!topic/neonixie-l/bh7kymv2xQA> I use PWM, but the fade pattern follows RC decay, encoded in a look-up table. I do this because visual perception is not linear. My early display designs did use linear crossfading, so that the sum of old and new "ON-times" was constant. Using the RC model is non-linear, so that the sum of the old and new, is minimum, at the mid-point, when both are equal, but the blank period is maximum. Visually, this scheme looks nicer. -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/ce36a49b-7156-458c-a572-f5795f5677cd%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
