Hello, I'm starting to design my first 6 digit nixie clock and I'd like to use direct drive of the tubes (my power supply can take 6 nixies without multiplexing).
So far I have built my Nixie watch, coding in ASM, worked on extreme power saving etc. I could multiplex the nixies as I did in this project https://fb.watch/eTb69SnxEP/ , but since I have a good power supply I wanted to build a clock with direct drive of the tubes. I prefer to code in ASM (don't ask why :) ), I could use a 100pin PIC18 to drive each digit individually through MMBTA92 & A42 transistors. However, if I want to use a PIC with a lower pin count (say 40pins), I may use a driver such as HV5530. Would I still get same brightness as a genuine direct drive as when using A92&A42 transistors? I suppose the switching that happens using CLK/SDA on the HV5530 is not too different than a good multiplexing. I may be wrong. And if I were do code ASM to use HV5530, does anyone have sample ASM code? I managed to write myself the code to read/write time from an RTC using CLK/SDA so I suppose it's very similar but I cannot figure it out from the datasheet of HV5530. Any help is much appreciated. Max -- 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 neonixie-l+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/5ca3f681-6250-4902-b14a-078d80e1f9d7n%40googlegroups.com.
