simple help..4-6 inch tall minute clock.

B

Brandon

Guest
Apologies if off topic, but I have searched google and found
nothing...Perhaps someone here can lead me in the right direction...
I am looking for the following...an LED or LCD minute clock ( just 2 digits)
4-6 inches in height and is high visibility, prefer AC power.

Perhaps a link to a kit or schematic so that I can build it myself.

Thanks for any info.
Brandon
 
"Brandon" <bnd-66@cox.netthefish> wrote in message
news:lnxfb.7169$La.3707@fed1read02...
Apologies if off topic, but I have searched google and found
nothing...Perhaps someone here can lead me in the right direction...
I am looking for the following...an LED or LCD minute clock ( just 2
digits)
4-6 inches in height and is high visibility, prefer AC power.

Perhaps a link to a kit or schematic so that I can build it myself.

Thanks for any info.
Brandon
Click to expand...
Google "digital clock schematic"
http://members.aol.com/_ht_a/HAdelkopf/dclock.html

and another from this newsgroup
http://www.kmitl.ac.th/~kswichit/Led/Led.html
 
Brandon wrote:
Apologies if off topic, but I have searched google and found
nothing...Perhaps someone here can lead me in the right direction...
I am looking for the following...an LED or LCD minute clock ( just 2
digits) 4-6 inches in height and is high visibility, prefer AC power.

Perhaps a link to a kit or schematic so that I can build it myself.
Click to expand...
Digikey makes large LEDs of about 5" that come in red or green, CA or
CC. They're not cheap at US$38.70 each. Then all you need is a few
logic IC's or a microcontroller and some drive power of 40 to
60mA/segment continuous or PWM'd at up to 180mA/segment. Some cheap
transistors and resistors would take care of the LED driving. I would
use a microcontroller such as a PIC rather than fuss with discrete
counter and decoder chips, but I'm prejudiced like that. ;-) For a
power source, I recommend you use a regulated wall wart that's capable
of putting out about 10W (5V at 2A).

michael
 
Thanks for the replies folks. I appreciate your time and efforts
Brandon

"Brandon" <bnd-66@cox.netthefish> wrote in message
news:lnxfb.7169$La.3707@fed1read02...
Apologies if off topic, but I have searched google and found
nothing...Perhaps someone here can lead me in the right direction...
I am looking for the following...an LED or LCD minute clock ( just 2
digits)
4-6 inches in height and is high visibility, prefer AC power.

Perhaps a link to a kit or schematic so that I can build it myself.

Thanks for any info.
Brandon
Click to expand...
 
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