It looks pretty basic. It uses a STM8 microcontroller with a ds3231 RTC, an old school method of implementing a 40 bit shift register made up the old school way (32 bits for digits, 2 extra for the colon and a few flapping in the breeze), the usb port is only there to supply power. D+ and D- (and ID) are *really* close to the ground plane if not outright shorted to it. The buttons are on the same board as high voltage with lots of ground plainy goodness to make sure any shorts count. No idea how thick the PCB is, though they are using a larger via size, so it’s probably a thin board, or the designer got lucky…
I’d say it’s a perfect example of what not to buy. -Dan > On Dec 12, 2022, at 8:15 PM, Terry S <tschw10...@gmail.com> wrote: > > https://www.ebay.com/itm/314168311777 > > Many sellers on ebay. > > Does it come with pins for the tubes? > > Terry > > -- > 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 > <mailto:neonixie-l+unsubscr...@googlegroups.com>. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/66e50f8a-47f8-48da-b3ef-585cb767bd39n%40googlegroups.com > > <https://groups.google.com/d/msgid/neonixie-l/66e50f8a-47f8-48da-b3ef-585cb767bd39n%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 neonixie-l+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/D0499BA4-116A-4B6D-8F07-8E24B6E4EDBA%40schnur.org.
