Re: Tiny universal clock PCB

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7 years 11 months ago #5537 by Pacman223
That tiny clock board is sounding better and better.

I like the idea of larger voltage, higher resister.

are you going to make it for med tubes? how about NL841 tubes? (I have some and sockets).

:)

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7 years 11 months ago #5539 by mjsangster
Should support any tube that requires 3.5ma or less current. All the small to medium size tubes should work.

- Michael Sangster
Cold War Creations

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7 years 10 months ago #5540 by mjsangster
I'm freezing my design, and have uploaded a revised preliminary overview of the board on:

Micro Nixie Board prelim

The next step is to order a proto board and begin testing. My software is about 90% complete (need to write GPS support and 4 digit clock support next).

I'll keep everyone informed of my progress.

- Michael Sangster

- Michael Sangster
Cold War Creations
The following user(s) said Thank You: Nisei

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7 years 9 months ago #5636 by mjsangster
Quick update on the universal clock PCB, MicroBoard1:

1. Received the proto board, successfully built the board.
2. Tested power supply, working with 180v @ 11mA, 83% efficient.
3. Micro was successfully programmed. (tested program connection and power to micro).
4. Prelim software complete (6 digit clock, no GPS).

Next steps:

1. Build harness with 6 IN-8 tubes and sockets for testing.
2. Test software.
3. Add GPS support to software. I'm using Adafruit GPS (Adafruit Ultimate GPS Breakout: www.adafruit.com/products/746 ), others probably will work, too.

Revisions/additions for production board:

1. Change 8 pin I/O connector to 10 pin I/O connector (board size stays the same). Better I/O options, especially with GPS present.

2. Design piggy back boards for the MicroBoard1: IN-17, B5750: 6 digit clock boards with optional GPS.

- Michael Sangster

Cold War Creations

- Michael Sangster
Cold War Creations

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7 years 9 months ago #5637 by Nisei
Replied by Nisei on topic Re: Tiny universal clock PCB
Thanks for the update Michael!
Sounds very promising.

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7 years 9 months ago #5652 by Pacman223
Yes, it is sounding very nice. I'm thinking this will make a great clock

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