[time-nuts] Hi Power LED Light power supply...

[DaveH]

Only one LED per segment is on.  They are arranged in a matrix -- keeps the
pin count down to a dull roar. 

http://www.instructables.com/id/LED-Dot-Matrix-Display/

http://www.electronics-lab.com/projects/misc/013/index.html

DaveH

> -----Original Message-----
> From: time-nuts-bounces at febo.com 
> [mailto:time-nuts-bounces at febo.com] On Behalf Of Ryan Szekeres
> Sent: Tuesday, September 18, 2012 12:55
> To: Tom Miller; Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Hi Power LED Light power supply...
> 
> On Tue, Sep 18, 2012 at 2:46 PM, Tom Miller 
> <tmiller at skylinenet.net> wrote:
> > That's because the signs are scanned/multiplexed displays. 
> It is not 60/120
> > Hz flicker.
> >
> > Tom
> >
> 
> Something new to research. Thanks!
> 
> --
> Ryan Szekeres
> KB9TQN
> 
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