Bi-Color Digital Clock with DS1307 on board. For a School Bus. 12V to 30V DC

Again I built this as a request of a friend. If you go through my older posts you will see lots of clock projects of mine. This clock is for a school bus. Normally Bus power source is 24V DC ( When the motor is running it will be like 26VDC ).
So in here I have used simple voltage regulator with High Current power transistor to drop the voltage to 12V.

Enclosure is made by using plexi glass.

About pasanlaksiri

I am K.G. Pasan Laksiri Karunanayake and founder of 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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2 Responses to Bi-Color Digital Clock with DS1307 on board. For a School Bus. 12V to 30V DC

  1. atomsoft says:

    NICE!!! im always amazed at how neat your work is! May i asked how do you cut the plexiglass? I have a nice big sheet here and would love to cut it up into pieces for my projects.

    Thanks in advance.

    I might be creating a whole new website with my own domain and would love to offer you a child site like …

    or something like that. You can of course buy your own domain like or something and link to there also…


  2. doriano says:

    can I have complete schema and the HEX file? Thank you


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