Pages: [1]   Go Down
Author Topic: Vacuum fluorescent display modules  (Read 982 times)
0 Members and 1 Guest are viewing this topic.
0
Offline Offline
Newbie
*
Karma: 0
Posts: 3
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Hi - im a newbee to both electronics and Arduino and are haviong trouble with hooking up an VFD from Futuba.

I dont have the excact datasheet from Futuba, but on their site I found sheets from similar displays. smiley

So - in my newbee enthusiasm, eagerness and NAIVETY I thought it was so simple as to connect the filament to grnd and pick the different grid/anode pairs to light up the different segments in the display.

In other words beeing able to program the segments on and off with a loop in Arduino, without a dedicated IC controller, by simply adressing the correct pin combinations and setting them "HIGH"

Test 1:
i connected the 4 filament pins to GND and different grid/anode pin pairs both to +5v simultaniosly.

Test 2:
i connected the 4 filament pins to GND and different grid/anode pin pairs to +5v and GND

Ive tested other posibilites also, but...

No reaction on the display!
The display was fully functional - at least before testing.

Co anyone have a clue to how to make a basic setup?

Finetuning led intensity etc is not important at this stage.... Im happy just beeing able to "see the light" smiley
« Last Edit: August 28, 2009, 08:57:04 am by Ogir » Logged

0
Offline Offline
Edison Member
*
Karma: 7
Posts: 1411
Arduino rocks
View Profile
WWW
 Bigger Bigger  Smaller Smaller  Reset Reset

Maybe you can get some inspiration from the Ice Tube Clock:
http://www.ladyada.net/make/icetube/
Logged

London, UK
Offline Offline
Jr. Member
**
Karma: 0
Posts: 53
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

If it's a vacuum fluorescent display it probably needs more than 5v. The one florinc links to uses over 40v! I'm sure I've seen one somewhere that was 14... but never as low as 5. You will need a suitably high voltage supply and, at least, a transistor to let the Arduino switch it on and off again.
Logged

0
Offline Offline
Newbie
*
Karma: 0
Posts: 3
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

Thanks for fast reply - ill try with higher voltages at the filament during the weekend smiley

Logged

0
Offline Offline
Newbie
*
Karma: 0
Posts: 3
Arduino rocks
View Profile
 Bigger Bigger  Smaller Smaller  Reset Reset

And the link to ladyada looks promising! Thank You!
Logged

Pages: [1]   Go Up
Jump to: