IN-17 Direct Drive WiFi Enabled Clock

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Richard Scales

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Nov 30, 2022, 7:15:04 AM11/30/22
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Following a recent post elsewhere I challenged myself to come up with an IN-17 version of the open source Prism design by Ian Sparkes.

This is the result. It's hardly the most frugal design. HV5622 drivers, wemos controller and an Omnixie HV module.

The 5V supply is all new as I needed to make it much smaller than the regular LM2596 design.

Most T. I. switchers are unobtainable but eventually I found something that worked. Thanks to John Ash for the power supply advice.

All the usual features including WiFi NTP sync and Web gui, optional PIR via 3.5mm jack, tube underlighting for those that like it.

Testing going well, now I need to stick it in a case - I am thinking of something that might sit on top of, or underneath (easier) a monitor - the IN-17's are not best suited to distance viewing!

 - Richard

IN-17-1.jpgIN-17-2.jpgIN-17-3.jpgIN-17-4.jpgIN-17-5.jpg

insidiousnixies;Utube

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Nov 30, 2022, 7:27:57 AM11/30/22
to neonixie-l
Looks great Mate..Now I know,what you were makeing,space for...Like the seperate -Bulbs have there own.circuit board,Design.
Cheers.Peter

blkadder

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Nov 30, 2022, 8:32:21 AM11/30/22
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I love the look of the tiny IN17s.  I would buy a kit for sure.

newxito

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Nov 30, 2022, 8:44:43 AM11/30/22
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Nice clock!
For 5V I like the AP63205WU-7, small, cheap and available again...

Richard Scales

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Nov 30, 2022, 9:33:39 AM11/30/22
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I ended up using the LMR16006YDDC  - I got hold of some of the fixed 5V ones.
- Richard

Richard Scales

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Nov 30, 2022, 9:39:00 AM11/30/22
to neonixie-l
I'm working on making this a  kit at some point - it is direct drive using HV5622's so it's not the most frugal of designs.

How are you  with SMD?

One of the parts in the PSU (in the first batch!) is 0402 - are you OK with that? I can always do that for you if needed.

If I re-order boards I will make it  0805 instead.

Otherwise its 0805, 1206, neopixels, A CD40109B in SOIC-16 and HV5622's in QFP-44 package that need soldering.

Then it's all the board interconnections, wemos mounting, power and PIR connections and a push switch.

I have board sets now as well as most (if not all) of the other components - including IN-17's. 

PM me if interested.

- RIchard


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