Electronics > Projects, Designs, and Technical Stuff
Custom Nixie Tube Clock Review
NivagSwerdna:
Cool. Please share some pictures when you have it working. :)
terminus:
I would replace arduino completely with the esp module. ESP-12 has enough gpios to operate the clock, much beefier than the nano and the board is smaller. You can flash arduino in it, but i prefer just C.
My nixi clock prototype has ESP-12, 6 nixies in 2x3 mux (2 74hc595, 2 155ID1), i2c RTC + some sensors.
Skashkash:
I also second the suggestion to use an ESP32. Lots of extra features. Easy enough to program within the Arduino framework.
And you may want to sign up on the neonixe mail list. It's low traffic, but a lot of nixie enthusiasts (myself included) are subscribed. It's a good resource.
https://groups.google.com/forum/#!forum/neonixie-l
NivagSwerdna:
I really should look at this too... the ESP32 has an RTC and deep sleep capability, so that might actually be accurate enough that you could ditch the DS3231 entirely and use infrequent NTP sync
schmitt trigger:
If you would like to complicate your circuit slightly but add significant appeal, I would add a Dekatron which rotates with the seconds.
Dekatrons have 10 steps, so it would take 6 revolutions to complete a minute. But the rotating effect, in my opinion, is *far more appealing* than a plain blinking LED or neon.
Another way to display the seconds, is to use a "magic eye", opening and closing in a heart-beat fashion. Again, very appealing visually.
I have done both approaches.
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