On Thursday, July 9, 2020 at 11:07:09 AM UTC-4, H. Carl Ott wrote: > > > They use a lot of hc595 shift registers and uln2003s to drive the tube, > Dirt cheap, but there is a DS3231 TCXO RTC on the pcb :). > > > carl > -------------------------------------------------------- > Henry Carl Ott N2RVQ [email protected] <javascript:> >
There are different type of DS3231's and I have not looked too closely at this one. I have seen two different versions used on the Chinese boards I have. One is the DS3231M that uses a MEMS resonator for accuracy and the other is the DS3231/DS3231S/DS3231SN that uses a TCXO for accuracy. Articles say the MEMS have better stability and reliability than TCXO. -- 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/d683ba0d-7f53-4fb3-820a-5ef8516089b6o%40googlegroups.com.
