The manufacturer "cheated", because they only display in increments of 5 minutes. So, with 4 bits you can get just over 1 hour.
I use 4 BCD thumbwheel switches in my upcoming alarm clock, so that burned-up 16 bits. But since I read them thru a serial interface that is shared with other switches and LED's, it doesn't require additional pins from the CPU or FPGA, but it does take additional shift register ICs. On Thursday, June 22, 2023 at 2:40:33 PM UTC-7 Benoit Tourret wrote: > I found those thumbweels, but they are DCD decimal coded decimal, 10 > outputs, easy to tests nixie, but I stopped at 3 nixie !!! > > how did they manage to count in binary up to 59 with 4 bits ??? > > Le jeudi 22 juin 2023 à 17:21:23 UTC+2, Nick Andrews a écrit : > >> Looks like some used in counters and timers in NIM and related nuclear >> physics stuff. >> >> On Wed, Jun 21, 2023 at 6:03 PM 'Moses' via neonixie-l < >> [email protected]> wrote: >> >>> I forgot I had this! I found a box of old BCD output thumbwheel switches >>> marked with the time. Hours 1-12 and minutes at 5 increments. Maybe for an >>> alarm input? Would need a switch for AM/PM. >>> >>> What else can it be used for ?? >>> >>> I don't need all the quantity I have.. so if anyone wants some PM me. >>> >>> Thanks! >>> >>> Regards, >>> -Moses >>> >>> >>> [image: IMG_20230621_154658275_HDR-small.jpg][image: >>> IMG_20230621_154703466_HDR-small.jpg] >>> >>> -- >>> 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 view this discussion on the web, visit >>> https://groups.google.com/d/msgid/neonixie-l/97052329-3814-4dcb-a637-679d49e6a442n%40googlegroups.com >>> >>> <https://groups.google.com/d/msgid/neonixie-l/97052329-3814-4dcb-a637-679d49e6a442n%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- 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 view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/ab363f1d-9336-46d8-8da4-0b0c36e4393an%40googlegroups.com.
