Check the Open Source PRISM design by Ian Sparkes - I have used this for several different clocks based on Dalibors tubes - I have changed the design to suit my needs but overall - it is the PRISM and uses his software to setup and control it. - Richard
On Saturday, 20 August 2022 at 05:38:51 UTC+1 gregebert wrote: > I've been using Raspberry Pi for all my designs now; built-in WiFi makes > auto-adjusting clocks trivially simple, as long as I have internet > service...... My RZ568m clock is still under construction. The basic design > uses HV5530's in a serial chain, with each chip driving 2 tubes. The boards > are chained with 10-conductor ribbon-cable, and I have a small > level-shifter PCB to boost the signals of the RasPi or FPGA to 12V. Let me > know if you want any of the design; nothing special in the design though. I > dont have any usable software (it's diagnostic-only), because the actual > clock is far more complex and will run with the FPGA and RasPi doing a lot > of other non-nixie work. > > The timekeeping software is really pretty simple: grab the time-of-day > from the OS, then map the 6 digits onto specific bits in the serial chain, > and send the serial bits at least once per second (I use 10x/second), and > "roll" the digits rapidly when the minutes or seconds hit 59. > > On Friday, August 19, 2022 at 8:39:05 PM UTC-7 Terry S wrote: > >> As I mentioned in a previous thread -- my Jeff Thomas WWVB clock is >> broken. A couple members here offered help, which I appreciate. But as >> novel and cool as the WWVB clock approach is, it's a bit of a dated design >> and I'm investigating doing something more "modern" with the big Z568M >> tubes. >> >> For those that may not know, the clock uses a modified "atomic" clock >> module from an ordinary WWVB sync'd wall clock. An 8 pin PIC set up as a >> timer manipulates the lone input on the clock board as if a user was >> pressing the button, setting the initial time and then allowing the WWVB >> receiver to speed up or slow down the conventional CMOS counters on the >> clock board to sync with WWVB time. It was truly an ingenious approach to >> have precise timekeeping back in the day. (Hours still had to be set >> manually by the user, using a magnet and reed switch.) >> >> With the advent of easy WIFI this approach is dated, the clock modules >> are difficult to find, and there is some tedious clock board rework to do, >> which I admit was easier to do when I had the right tools and magnification >> at my disposal. Problem I need to solve. >> >> Soooo...... I'm seeking out an open source design I can use/adapt for my >> big tubes. I'd like to lay out the boards myself so I can match the current >> footprint and use my existing enclosure. I'm not hung up on the whole "not >> invented here" syndrome -- I'm happy to use something well tested. >> >> Arduino based would be ideal, but I can work with most anything. Retired >> now so looking to learn new tools. >> >> Any suggestions? >> >> 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. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/d6824ee7-ec38-4b3c-924b-b6e563a24d5cn%40googlegroups.com.
