[sdiy] Re:

[harrybissell]

Ahh I missed that it was for a Miniwave.  I built a decoder for that using
an eprom
so I could get actual "letters" corresponding to key signatures.   I also
did a
0-7 and .0-7  (added the decimal point) in an earlier version.   I VERY
quickly learned that
asking my wife to make quick, reliable patch changes in straight binary was
not a good idea.

sadly I neglected to account for a touch of dyslexia that sometimes makes a
"b" a "d"...

(girls who are not geeks do not follow cheezy seven segment pseudo-alpha
characters easily :^)

H^) harry

ASSI wrote:

> On Montag, 2. August 2004 17:34, allanjhall at lineone.net wrote:
> > I'm building a blacet miniwave module and I thought it would be nice
> > if I had two seven segment led's (each reading 0 to F) to show the
> > bank number (1 to 16) and wave number (1 to 16), rather than the
> > array of (2x) four led's normally used, as decoding them is probably
> > a bit too much of a challenge to my counting skills. There are four
> > data lines, so it would be easy to get the displays to read from 0 to
> > 10 using a 4511 BCD to hex decoder/driver, however I need each
> > dispaly to read up to 16 (F) in hex, is there an easy one chip
> > solution for this or is it more involved?
>
> Get a 4311 instead of the 4511, this one will show the non-decimal
> codes. Also the 74(LS){46,47,48} will at least display something
> unique, just not a nice A, B, C, D, E, F. The latter ICs are much more
> common than the 4311.
>
> Achim.
> --
> +<[Q+ Matrix-12 WAVE#46 microQkb/Omega Andromeda XTk/30 sonic heaven]>+
>
> SD adaptations for KORG EX-800 and Poly-800MkII V0.9:
> http://homepages.compuserve.de/Stromeko#KorgSDada