[time-nuts] Clock Project Help
Brent Gordon
time-nuts at adobe-labs.com
Thu Oct 29 04:27:55 UTC 2009
There is an article in Circuit Cellar magazine that you need to read.
It is Time Server Design: Synchronize with the WWVB Time Code. It is
in the Nov 2008 issue (#220). You can buy the article at
[1]http://www.circuitcellar.com/magazine/220.html for $1.50. Although
it is the opposite of what you want to do (it acts as an NTP server),
the article has lots of useful information.
I vaguely recall that they also had an article very close to what you
want, possibly in 2007. If I remember correctly it was a combination
alarm clock/MP3 player that got the time using NTP. If it wasn't in
Circuit Cellar then it was in Nuts & Volts magazine
[2]http://www.nutsvolts.com/ . Nuts and Volts is more beginner
oriented than Circuit Cellar.
If you want a microcontroller with an OLED display look at Luminary
Micro Stellaris LM3S811 Evaluation Kit
[3]http://www.luminarymicro.com/products/stellaris_811_evaluation_kits.
html . You can get them from Digi-Key for $49. It doesn't have
ethernet but it does have USB. Add one of the internet-on-a-chip
boards from Microchip or Wiznet and you're done.
I just found out Circuit Cellar is sponsoring a contest with $15000
total prize money for cool designs using the Wiznet W7100. You can get
an eval board with LCD display for $49. I think it would be ideal for
your project.
[4]http://www.circuitcellar.com/newsletter/1009.htm
I'm not affiliated with Circuit Cellar in any way other than as a
subscriber. Most of what I know about embedded systems I learned from
reading the magazine. They even have Time Nuts related articles:
Microcontroller Clock-Locking: Frequency Reference Synchronization in
the Jan 2009 (#222).
Brent
References
1. http://www.circuitcellar.com/magazine/220.html
2. http://www.nutsvolts.com/
3. http://www.luminarymicro.com/products/stellaris_811_evaluation_kits.html
4. http://www.circuitcellar.com/newsletter/1009.htm
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