Powering IN-13 Bargraph Tubes

[Roddy Scott]

Folks,

I am looking for a small circuit to incorporate into a clock that will allow me to pulse two IN-13s every second giving a growing  full scale display on the tubes. Better would be if it could pulse them alternatively

Ideally it has to run from a 12VDC switched suppy shared by the clock circuit board. I am no Einstein when it comes to electronics but reasonably handt with a soldering ireon. If anyone knows or has such a circuit I'll be very grateful if they would share. 

Roddy

[SWISSNIXIE - Jonathan F.]

I would use the circuit shown here:

http://www.smbaker.com/experimenting-with-in-13-bargraph-nixie-tubes

And then use an Attiny or smiliar to generate a rising PWM Output ant an input.

If you are interested, i can try out the schematic and supply an arduino for an Attiny if it works.

[Roddy Scott]

Hi SWISSNIXIE,

my knowledge of arduino and such can be written on a pin head. Can something like the cheap Intel units do this? I am planning a clock as in the illustration and want to contain everything in the casing including the clock board and whatever drives the IN-13s.

[SWISSNIXIE - Jonathan F.]

[SWISSNIXIE - Jonathan F.]

Hi

I have tested the circuit and it works fine, just requires 4 parts per side and of course a controller.

What platform is "cheap Intel units?", if i know this, i might be able to convert the code.

The code would fit a Attiny45, which is a easy-to-solder 8-DIP package. 


Note: You said you want to pulse the IN-13 each second? I have played around, and if you use a very fast grow of the scale, you don't even notice the grow, its like you turn it on. Attached is a video where the time for reaching full scale is 1s, still very fast. Maybe you should consider other timing.

https://www.youtube.com/watch?v=mvZtdhzS7RA&feature=youtu.be

[Roddy Scott]

Thanks, Jonathan,

I looked at the Intel Gallileo but it is more expensive than an Arduino Uno which would probably be able to control the Attiny. Thinking about pulsing every second as you said would not give a good effect so I thought about pulsing each one alternatively, that would give a 2 second cycle and with them offset would look quite good as a display.

My knowledge of things like that is limited.

[SWISSNIXIE - Jonathan F.]

Yes, a Arduino Uno can burn code on a Attiny25/45 or similar. I can make you a arduino file that will do that. You just have to burn it to the attiny, i will send you a tutorial! :)

[Roddy Scott]

Thanks, Jonathan!