# 4-6" tall Minute only clock.

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#### Brandon

Jan 1, 1970
0
I am looking for the following...( google produced nothing)
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

R

#### Robert Monsen

Jan 1, 1970
0
Brandon said:
I am looking for the following...( google produced nothing)
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

I built a schematic for this. Take a look at

http://home.comcast.net/~rcmonsen

I have not breadboarded it, but simulation seems to work fine. Make sure the
7 segment display driver can drive your big LEDs.

Regards,
Bob Monsen

B

#### Brandon

Jan 1, 1970
0
Robert Monsen said:
I built a schematic for this. Take a look at

http://home.comcast.net/~rcmonsen

I have not breadboarded it, but simulation seems to work fine. Make sure the
7 segment display driver can drive your big LEDs.

Regards,
Bob Monsen
Well, thank you !
Just out of curiosity. What would you estimate this to cost?
What if you built it and sent it to me?
Just curious.
Thanks again
Brandon

R

#### Robert Monsen

Jan 1, 1970
0
Brandon said:
[snip]
Well, thank you !
Just out of curiosity. What would you estimate this to cost?
What if you built it and sent it to me?
Just curious.
Thanks again
Brandon

The total parts cost would be dominated by the 5" displays, which'll run you
about $40 each (ouch). The transformer is about$10. The microcontroller,
shift registers, and assorted power mosfets is about $20. So, you are looking at about$110 in parts. The case will be more, depending on how
fancy you want it to look.

Its too bad I didn't buy that large digit (4") 7 segment display A/C alarm
clock at the yard sale yesterday for 50 cents; its possible though that your
application will require brighter segments. The ones on digikey (see link
below) should be really bright.

Regards,
Bob Monsen
email me at rcmonsen at comcast dot net

http://www.digikey.com/scripts/us/dksus.dll?Detail?Ref=164351&Row=18071

R

#### Robert Monsen

Jan 1, 1970
0
Robert Monsen said:
Brandon said:
[snip]
Well, thank you !
Just out of curiosity. What would you estimate this to cost?
What if you built it and sent it to me?
Just curious.
Thanks again
Brandon

The total parts cost would be dominated by the 5" displays, which'll run you
about $40 each (ouch). The transformer is about$10. The microcontroller,
shift registers, and assorted power mosfets is about $20. So, you are looking at about$110 in parts. The case will be more, depending on how
fancy you want it to look.

Its too bad I didn't buy that large digit (4") 7 segment display A/C alarm
clock at the yard sale yesterday for 50 cents; its possible though that your
application will require brighter segments. The ones on digikey (see link
below) should be really bright.

Regards,
Bob Monsen
email me at rcmonsen at comcast dot net

http://www.digikey.com/scripts/us/dksus.dll?Detail?Ref=164351&Row=18071

Actually, I just found some cheaper displays:

http://www.elexp.com/opt_0165.htm

$13 for 5" high 7 segment red displays. Much cheaper, and they look about the same from the specs. Regards, Bob Monsen B #### Brandon Jan 1, 1970 0 Robert Monsen said: Robert Monsen said: Brandon said: [snip] Well, thank you ! Just out of curiosity. What would you estimate this to cost? What if you built it and sent it to me? Just curious. Thanks again Brandon The total parts cost would be dominated by the 5" displays, which'll run you about$40 each (ouch). The transformer is about $10. The microcontroller, shift registers, and assorted power mosfets is about$20. So, you are
looking at about $110 in parts. The case will be more, depending on how fancy you want it to look. Its too bad I didn't buy that large digit (4") 7 segment display A/C alarm clock at the yard sale yesterday for 50 cents; its possible though that your application will require brighter segments. The ones on digikey (see link below) should be really bright. Regards, Bob Monsen email me at rcmonsen at comcast dot net http://www.digikey.com/scripts/us/dksus.dll?Detail?Ref=164351&Row=18071 Actually, I just found some cheaper displays: http://www.elexp.com/opt_0165.htm$13 for 5" high 7 segment red displays. Much cheaper, and they look about
the same from the specs.

Regards,
Bob Monsen
Hi Bob, appreciate your effort here, so...

Would you be interested in building this thing?
Thanks
Brandon

R

#### Robert Monsen

Jan 1, 1970
0
email me at rcmonsen at comcast dot net

Brandon said:
Robert Monsen said:
Robert Monsen said:
[snip]
Well, thank you !
Just out of curiosity. What would you estimate this to cost?
What if you built it and sent it to me?
Just curious.
Thanks again
Brandon

The total parts cost would be dominated by the 5" displays, which'll
run
you
about $40 each (ouch). The transformer is about$10. The microcontroller,
shift registers, and assorted power mosfets is about $20. So, you are looking at about$110 in parts. The case will be more, depending on how
fancy you want it to look.

Its too bad I didn't buy that large digit (4") 7 segment display A/C alarm
clock at the yard sale yesterday for 50 cents; its possible though
that
your
application will require brighter segments. The ones on digikey (see link
below) should be really bright.

Regards,
Bob Monsen
email me at rcmonsen at comcast dot net

http://www.digikey.com/scripts/us/dksus.dll?Detail?Ref=164351&Row=18071

Actually, I just found some cheaper displays:

http://www.elexp.com/opt_0165.htm

\$13 for 5" high 7 segment red displays. Much cheaper, and they look about
the same from the specs.

Regards,
Bob Monsen
Hi Bob, appreciate your effort here, so...

Would you be interested in building this thing?
Thanks
Brandon

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