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molka
Joined: 17 Mar 2011
Posts: 2416
Location: Budapest, Hungary
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 Posted: Fri Jul 19, 2019 2:01 pm Post subject: VFD clock with IV-6 tubes |
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I have some old IV-6 VFD tubes for long time and I planned long ago to design and build a nice alarm clock using them.
Now the plan is achieved, I designed the circuit and a plastic box for it. So a nice room decoration is ready.
It’s main features:
- Controlled by a Microchip PIC16F1778 microcontroller
- DS1307 real-time clock chip provides the time base with backup battery protection
- The device utilizes an MCP9800 temperature sensor for temperature measurement
- 6 digit IV-6 VFD tube display, an RGB LED provides background light for each tube
- - 24h time display (RGB LED’s color fade animation)
- - Date display in YY.MM.DD or DD.MM.YY format
- - Temperature display in °C / °F format
- - Alarm with snooze features
- - Countdown function, selectable 1-59 minutes delay
- 4 control buttons for setting (MODE, SET, + and -)
- Night and Day modes (RGB LEDs and/or VFDs turn off at night, at programmable time)
- Automatic brightness control of VFDs and RGB LEDs
Size 14 x 6,5 x 3cm (5,54" x 2,56" x 1.18"), tube top 6cm (2.36")
I have some extra PCBs, so I can offer them as kit, if someone would like to build the clock by himself, or assembled.
A PCB and the programmed microcontroller at $8
or a full kit with all components at $35
or an assembled, tested board at $55
And the plastic box at $30.
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H3nrik V!
Joined: 15 Apr 2014
Posts: 1246
Location: Denmark
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| Posted: Fri Jul 19, 2019 2:07 pm Post subject: |
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That's pretty cool! But the date is one year off  |
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Marcin
Joined: 02 Jan 2005
Posts: 8519
Location: Poland
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| Posted: Fri Jul 19, 2019 2:13 pm Post subject: |
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| H3nrik V! wrote: | | That's pretty cool! But the date is one year off |
It's real time machine
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cvandijk
Joined: 21 Jul 2016
Posts: 3589
Location: Netherlands
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| Posted: Fri Jul 19, 2019 2:29 pm Post subject: |
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| Looks pretty cool, how long does those tubes work? |
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rjluna2
Joined: 27 Oct 2014
Posts: 1302
Location: Hiram, GA, USA
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| Posted: Fri Jul 19, 2019 3:24 pm Post subject: |
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Nice  |
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molka
Joined: 17 Mar 2011
Posts: 2416
Location: Budapest, Hungary
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| Posted: Fri Jul 19, 2019 3:29 pm Post subject: |
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| cvandijk wrote: | | Looks pretty cool, how long does those tubes work? |
I do not know exactly, I find documentation only in Russian. But I don't speak Russian.
Can someone find the info in the attached documentation?
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molka
Joined: 17 Mar 2011
Posts: 2416
Location: Budapest, Hungary
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| Posted: Fri Jul 19, 2019 3:35 pm Post subject: |
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| Marcin wrote: | | H3nrik V! wrote: | | That's pretty cool! But the date is one year off |
It's real time machine |
Yes it is, but unfortunately it can take you only forward in time. Exactly 60 seconds in each minute.
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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dps
Joined: 01 Jun 2009
Posts: 2717
Location: Saint-Petersburg, Russia
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| Posted: Sat Jul 20, 2019 6:21 am Post subject: |
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| molka wrote: | | cvandijk wrote: | | Looks pretty cool, how long does those tubes work? |
I do not know exactly, I find documentation only in Russian. But I don't speak Russian.
Can someone find the info in the attached documentation? |
I understand a little Russian
For the dynamic mode, An operating time of at least 15000 hours is guaranteed |
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molka
Joined: 17 Mar 2011
Posts: 2416
Location: Budapest, Hungary
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| Posted: Sat Jul 20, 2019 1:00 pm Post subject: |
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| dps wrote: | | molka wrote: | | cvandijk wrote: | | Looks pretty cool, how long does those tubes work? |
I do not know exactly, I find documentation only in Russian. But I don't speak Russian.
Can someone find the info in the attached documentation? |
I understand a little Russian
For the dynamic mode, An operating time of at least 15000 hours is guaranteed |
Thanks!
They are used in dynamic mode. So at least 625 days are guaranteed in continuous run. The lifetime can be expanded if the clock does not run continuously. Eg. it should be unplugged if the owner not at home, because the RTC chip runs powered by the battery in this case. Or in night mode the VFDs can be turned out.
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xhoba
Joined: 20 Apr 2009
Posts: 4596
Location: Picardie, France
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molka
Joined: 17 Mar 2011
Posts: 2416
Location: Budapest, Hungary
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| Posted: Sat Jul 20, 2019 1:43 pm Post subject: |
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| CPUShack wrote: | | One complete version for me |
| xhoba wrote: | | Nice! I'd like one fully assembled with plastic case please. |
Thanks!
I collect the requests then I'll order the plastic cases from the factory. Then the fabrication of the cases will take a few weeks. So be patient, please.
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