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How to make a 7 segment clock? Answered

hi! i have 6 X 7 segment displays ( i think common annode) hanging around and i was wondering if i could make an clock with hours minutes seconds and an LED or 2 LED's that blinks every second, without an arduino. i do have an arduino for programming but i rather use other parts so that i can use my arduino for other projects. who can help me? Thanks!

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icengBest Answer (author)2014-10-08

These pics should help.

The circuits use common anode 7 seg LED.

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steveastrouk (author)iceng2014-10-09

What a classic chip. Up there with the 555 and 741.

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ingkiller (author)iceng2014-10-08

Do you mabe have more details about the values of the resistors and capasitors from the MM5314N schematics? thats looks pretty much like what i want to build :)

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iceng (author)ingkiller2014-10-08

You can search Google for MM5314N schematics as well as i can.

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iceng (author)iceng2014-10-08

And brown-green-red ==> 1500 ohms

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mpilchfamily (author)2014-10-08

You'll want to use an RTC and then some circuits to drive the displays. A micro controller is your best option though to get the data form the RTC and to drive the displays. There are a great many digital clock projects around you can reference for your build.

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