Hi All, The seven digit, IN-18 board is on order so I'm on to the next project, a fifteen digit Union Square Metronome type clock similar to Jarek's clock here: http://hackaday.com/tag/metronome/
Four HV5530s will be connected in series and updated every second, driving twelve Nixies. That should not be a problem. One HV5530 will update two, 1/10 second, and one, 1/100 second Nixie, updated at 10ms. All five will have the blanking lines connected together, to a PWM pin. That leaves Data, Clock, and Latch, and only two extra level shifters are available on the CD4054B. My thought is that only the latch line on the four HV5530s needs to be separated from the latch line on the single, fifth HV5530 because even though the data will be presented and clocked to all five HV5530s, if it is never latched and subsequently replaced with it's correct data, incorrect data will never latch to the wrong display. With two available level shifters and pins available on the 1284P, clock and latch could be separated, but I'm not sure if separating the clock line too, will make a difference. Please give me advice on this. By the way, the cost estimate for the seven digit, IN-18 board from OSH Park was just over $210 for three boards, with shipping. I decided to try PCBWay this time because their estimate was $70 with DHL shipping for five boards. Thanks. -- 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/9fd1f829-7287-4942-99b2-b04f4625f36e%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
