Thanks! The Teensy has a USB port. You can send timing info there. Someone may want to write that code. I have no strong inclination to make it super-accurate, because it's just a table clock. It uses a DS3232 RTC chip. When I need to know what time it is with picosecond accuracy, I consult one of the hydrogen masers at our radio telescopes that participate in the Event Horizon Telescope.
On 9/4/21, Michail Wilson <[email protected]> wrote: > Me too. At least one. > > Going to add Wifi for NTP? > > Michail Wilson > 206-920-6312 > > From: [email protected] <[email protected]> On Behalf Of > Richard Scales > Sent: Saturday, September 4, 2021 7:33 PM > To: neonixie-l <[email protected]> > Subject: Re: [neonixie-l] Cathode Corner Scope Clock is nearing production > > I don't have a scope clock - yet ..... > I'm looking forward to seeing detailed specifications as and when. > count me in too! > - Richard > > On Sunday, 5 September 2021 at 03:24:03 UTC+1 martin martin wrote: > Count me in! I have one other scope clock, but it's not too accurate. Will > look good next to the many Nixie and Numitron clocks.. > > > > ~ > [email protected] > > > On Sat, Sep 4, 2021 at 7:11 PM Audrey <[email protected]> wrote: > Wow that's amazing! Excellent work. > > On Sat, Sep 4, 2021, 10:00 PM David Forbes <[email protected]> wrote: > Finally! I have found a way to make Scope Clocks again. > I first made them in 2001, using a plastic case fabricated locally. I > redesigned the case several years ago using living hinges, and made a > couple prototypes on the laser cutter at the local hackerspace, > Xerocraft. This didn't seem to be a sustainable production method, as > their laser cutter is in high demand. So I started building my own > laser cutter in 2019, then I had to build a workshop to house it, then > the pandemic... > The circuit board uses a custom power supply transformer to make the 5 > voltages needed form a 12V wall wart. The CRT is a 3RP1-A with a real > socket. The computer is a Teensy 3.6, which has the horsepower and two > DACs to allow circle and line generation in firmware. The code will be > open source. I have already started to write a Pong game for it. Four > letter words and haikus are on the horizon. > The case may be cut in either acrylic or Baltic birch. I also will > provide the enclosure source as an OpenSCAD file. (It's an amazing > program!) I still need to optimize the living hinges for acrylic, as > they are a bit delicate. > Stay tuned for more information. > > -- > 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/CAPbqtvcNHkdeQXA%3DfzZ%3DXcdTDGOiOEX5bu1gpD52nO166UbvNQ%40mail.gmail.com. > -- > 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/CAPDJQ6C7yj20O9Qf%3DLfqrQhTJY0C45_%3D--Pf5f-Lta3pJPZkTg%40mail.gmail.com<https://groups.google.com/d/msgid/neonixie-l/CAPDJQ6C7yj20O9Qf%3DLfqrQhTJY0C45_%3D--Pf5f-Lta3pJPZkTg%40mail.gmail.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]<mailto:[email protected]>. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/a83046b9-ded9-4851-aca8-543a2c1ab241n%40googlegroups.com<https://groups.google.com/d/msgid/neonixie-l/a83046b9-ded9-4851-aca8-543a2c1ab241n%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/MW2PR0102MB343524CD880E2054443E686A82D19%40MW2PR0102MB3435.prod.exchangelabs.com. > -- 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/CAPbqtve_pXNycRc7ZWr_fdpYz8vFW0RncUBFka6pG9OCS6OKkA%40mail.gmail.com.
