Very nice! Any chance of a kit? On Jun 24, 2014 5:18 AM, "petehand" <[email protected]> wrote:
> > <https://lh5.googleusercontent.com/-PS9IlBAtXJ4/U6lB_VHaIFI/AAAAAAAAAK0/DbcReEmHYo8/s1600/P1010711.jpg> > <https://lh4.googleusercontent.com/-Mp4oF93gc-w/U6lCJX-V8zI/AAAAAAAAAK8/U4GdQuIFxuE/s1600/P1010709.jpg> > <https://lh5.googleusercontent.com/-PS9IlBAtXJ4/U6lB_VHaIFI/AAAAAAAAAK0/DbcReEmHYo8/s1600/P1010711.jpg> > Inspired by Grahame Marsh's "approx" and "proverb" clocks ( > http://www.sgitheach.org.uk/vfd3b.html), here's my effort. It tells the > date and approximate time ("nearly ten to three" etc), has a complete > calendar of US special days including the ones that move (eg it shows > Easter correctly for the whole 21st century), a thousand different proverbs > and quotations, and 366 historic birthdays, one for every day of the year. > (I was torn who to pick for December 25th. The obvious would be Jesus > Christ, but I opted for Sir Isaac Newton instead.) Additionally you can put > in 30 messages of your own, such as birthday or anniversary reminders, to > show on specific dates, plus sixteen of your favorite witty sayings or > scurrilous remarks to show up at any time. I ended up with less than 128 > bytes of Flash memory free and not a single unused byte of EEPROM, which > gives me great satisfaction. > > Since the LM9022 is going out of style, I used an Si9986 H bridge (U4, > bottom right) for the filament AC, driven by the processor off the > oscillator that generates the 35V. A pair of HV5812s drive the 16 grids and > 16 anodes at a multiplex frequency of 1kHz. There's an ambient light sensor > above the display for automatic brightness control. It plugs into any USB > port for power, which is also the way you edit the personal messages. A > supercap keeps time for a day or two when it's unplugged - personal > messages are stored in EEPROM and won't be lost. > > > > -- > 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 post to this group, send email to [email protected]. > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/dd3a2e0f-50b4-4605-9de4-f645475744b1%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/dd3a2e0f-50b4-4605-9de4-f645475744b1%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- 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 post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/CAJrqPH_iBioNGrzT9anbK%2BEnZ%2BUnek2aAHrWvmOvzdruR%3D7tNw%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
