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Weird 7 Segment Display (more like 16 segment) — Parallax Forums

Weird 7 Segment Display (more like 16 segment)

nrsmacnrsmac Posts: 42
edited 2011-12-11 10:06 in BASIC Stamp
I have a bunch of these displays. The weird thing is that instead of a bunch of + in pins and one common cathode, there is a common anode, with a bunch of cathodes. It is kinda hard to explain, so here is a wiring diagram (sorry it's in German)

vqb200.gif


Does anyone know a way, that I can wire these up to my BS2? Thanks in advance
vqb200.gif
700 x 1680 - 41K

Comments

  • PJAllenPJAllen Banned Posts: 5,065
    edited 2011-12-11 09:25
    If you just want to check one out - the CA goes to 5V, each segment cathode goes to a resistor (470Ω), and each resistor connects to an OUTPUT pin. Making the OUTPUT low turns the segment On and making the OUTPUT high turns the segment Off.
  • nrsmacnrsmac Posts: 42
    edited 2011-12-11 09:46
    Thanks!!!! Ingenious idea. I never would of thought of that on my own. I now am making letters appear on my board. !!!! U rule!
  • PublisonPublison Posts: 12,366
    edited 2011-12-11 10:06
    Nutin' weird about Common Anode. It's usually an option when choosing LED devices. CA or CC. See that all the time.
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