Tiny universal clock PCB

More
5 years 4 months ago #5416 by mjsangster
Nisei,

Not sure, but you can email me at:

This email address is being protected from spambots. You need JavaScript enabled to view it.

- Michael Sangster
Cold War Creations

Please Log in or Create an account to join the conversation.

More
5 years 4 months ago - 5 years 4 months ago #5426 by Pacman223
I think I like that idea, of a tiny universal clock ... can you describe its features? You mentioned 3x2 multiplexing, could you do a direct drive? (I would guess it would be bigger and more expensive).

I like the idea of having everything on one small board! How would you attach wires to the tube sockets? i.e. just a hole in the board? Maybe some sort of speaker wire screw post?
Last Edit: 5 years 4 months ago by Pacman223.

Please Log in or Create an account to join the conversation.

More
5 years 4 months ago - 5 years 4 months ago #5427 by Nisei
It's all been described in the previous posts.
If you want a board with screw posts you'd better buy the pvelectronics remote tube kit . We're talking as small as possible here :)
Last Edit: 5 years 4 months ago by Nisei.

Please Log in or Create an account to join the conversation.

More
5 years 4 months ago - 5 years 4 months ago #5428 by Pacman223
:) building a clock from the pv electronics kit now... its so far looks very good, I now need to wire the sockets, soon will be able to turn it on and test it..

The thoughts of having a smaller board, that would fit into a smaller box, sounds like a good idea. Might make more options for a clock case possible.

The thoughts of a temp display sounds really good:)
Last Edit: 5 years 4 months ago by Pacman223.

Please Log in or Create an account to join the conversation.

More
5 years 4 months ago #5498 by mjsangster
I'm 80% complete with the board design:
- size 2.5" x 2" x .25" (inches)
- requires 200 -300 mA at 9 - 15 V, 3 pin Molex connector
- 180V at 10 mA generated on the board
- 3x2 multiplexing (2 on at once)
- supports 2 colon sets

Now I'm wondering what I should have for I/O, possible items:
- 2 time/date/option switch inputs
- alarm enable switch
- GPS input
- alarm output (open collector transistor)
- temperature sensor (could be 9700 sensor, cheap and easy to interface)
- ambient light sensor, either on board or off
- any other items?

What kind of connector? Inline 10 pin .100" connector?

- Michael Sangster
Cold War Creations

Please Log in or Create an account to join the conversation.

More
5 years 4 months ago #5499 by Pacman223
I would vote for temperate, light sensor myself.. if possible humidity sensor

If have seen a few nixie thermometers with humidity, and think that sounds very cool for a clock

Please Log in or Create an account to join the conversation.

More
5 years 4 months ago #5503 by kay486
Dont over do the clock, for something like this (small as possible board) you do not need any fancy features. Like humidity sensor, that just sounds stupid to me. Even the GPS is little bit excessive imo.
One thing im not sure about is the ratio of the board dimensions (1,25:1) its close to sqare, i think it would be much more efficient to have it rather longer and slimer. So it would be only deep as the tube diameter and it could rest just under (or behind) the tubes without the pcb sticking out at all. You could make very nice slim clocks this way.

Please Log in or Create an account to join the conversation.

More
5 years 4 months ago #5506 by Pacman223
I think I agree about keeping it small and simple , for interesting clock case ideas.. I

like the idea of humidity, but only if everything can be kept small:) but that's me...

Please Log in or Create an account to join the conversation.

More
5 years 4 months ago #5509 by mjsangster
Possible I/O:

* 2 switch inputs for setting time/date/options
* 1 analog for temperature
* 1 analog for light sensor
* 2 (1 input, 1 output) for alarm


Also, possible sizes for the board:

* 2.00" x 2.5"
- or -
* 1.2" x 3.4"

Any thoughts?

- Michael Sangster
Cold War Creations

Please Log in or Create an account to join the conversation.

More
5 years 4 months ago #5510 by Nisei
Sent you an email :)

Please Log in or Create an account to join the conversation.

Moderators: AccutronTy_EeberfestIan
Time to create page: 0.051 seconds

Search

Tube Suppliers

Go to top
JSN Boot template designed by JoomlaShine.com