At 12:05 AM 3/18/2004 +0200, you wrote:
>
>Hi Byron,
>
>Thanks, I guess I should have gone and read that datasheet. I just assumed
>you meant a BCD to 7 Seg display driver. I understand now what you meant.
>
>I'll add the driver chip and implement the algorithm you suggested and come
>back if I have more questions :-).

Actually, I strongly suggest that if you want to add a driver, you just put
a ULN2803 in there and invert the segment lines. *Much* kinder to the LEDs
than trying to run them at 32 times the desired average current. In fact
you may not get any real improvement at all with the 7445.

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com

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