12V-32V Ultra Bright Red-Green LED Digital Clock

This clock is perfect for BUS. Selectable Two Colours RED and GREEN.  Its working voltage is 12V to 32V.  CR2032 watch battery as a back up power source. Very accurate timing.

About pasanlaksiri

I am K.G. Pasan Laksiri Karunanayake and founder of OptoElectronics.lk. Since 2011 I have specialized in designing custom electronics for industrial applications. Over the years I have engineered a broad range of custom industrial products. When I work with a client I place a very high value on integrity, honesty and clear communication. With years of field experience I have learned that all business relationships are personal relationships. The more I know about the client and his project, the more I can contribute to a successful end product. After I learn about the client requirement I always give them the better understanding and clear picture about, how the end product will function in real world. In addition to the client requirement, I also offer lots of options, features and improvements. And I always very concern about the end product quality.
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5 Responses to 12V-32V Ultra Bright Red-Green LED Digital Clock

  1. dilan silva says:

    what a technology u r best

    sir do u have printed circuit board & programmable chips for sale for this?


  2. pasanlaksiri says:

    Hey Dilan plz call me Pasan.

    And yes. but not for sale as a kit yet. 🙂


  3. Eashani says:

    Nice job.
    Keep it up.
    All the best!


  4. kwokhf says:

    sir, its a great project, do u let me know how to drive the large 7 segment.
    using udn2981 ?
    could u mind give me the schematic diagram ?


    • pasanlaksiri says:

      Actually which type of and how big is your talking about. In here I used UDN2981.
      And my segments are Common Anode type. Actually if you want even bigger. You better use FETs.


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