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Electronics => Beginners => Topic started by: delta75 on October 20, 2012, 04:16:45 pm

Title: digital clock
Post by: delta75 on October 20, 2012, 04:16:45 pm

Hi All,
        I am trying to make a digital 12hr clock, I have it working sort of right. Its working more like a 12 hr timer right now,what i would like to know is how can i set the time do i need to use some memory chips, i am a beginner and am trying to learn by building.
i am using 4 seven seg leds, 4511 decoders and have tried  using various counters 4518, 4510
I am trying to make this without micros as i think i will learn more about the basics of electronics

Title: Re: digital clock
Post by: johnboxall on October 21, 2012, 12:02:12 am

Here's a few projects that may of interest:

http://code.google.com/p/74clock/ (http://code.google.com/p/74clock/)
http://geekness.eu/content/4000-series-cmos-24-hour-clock (http://geekness.eu/content/4000-series-cmos-24-hour-clock)

Title: Re: digital clock
Post by: delta75 on October 21, 2012, 12:00:56 pm

thanks for the links tronixstuff