Digital Clock (with no ICs)

Discussion in 'Electronics & Electrics' started by 2xCPU, Jan 10, 2010.

  1. 2xCPU

    2xCPU Member

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  2. Symon

    Symon (Plugging your Socket)

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    That's dedicated. I love projects that do something modern using old-school techniques and hardware. I saw a woodturner once who made a clock completely out of wood, cogs and everything.
     
  3. merlin13

    merlin13 Member

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    Veeeeery sexy. Surface mount one would be the desktop model?

    Interesting how electronics has been going retro...
     
  4. Technics

    Technics Member

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  5. Naru

    Naru (Banned or Deleted)

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  6. bleckers

    bleckers Member

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    It just goes to show how far we have come in such a short space of time, and that how we take for granted the technology we use.
     
  7. danstheman

    danstheman Member

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    Was discussing this a while ago with a friend. There is too much of a reliance on IC's these days to complete tasks that are alot smaller and simpler with basic electronics.
     
  8. Nitephyre

    Nitephyre Member

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    Certainly doesn't look smaller :p

    (Yes, I know you meant the task not the physical size :D)
     
  9. aXis

    aXis Member

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    I cant think of any job that's smaller with basic components versus an IC - that's kind of the whole point.


    Simpler however is a tricky one. Some IC's can be more complex but I'd bet that a simple basic component wont have the same level of performance either - eg say thermal and over-current protection, compliance to standards etc.
     
  10. danstheman

    danstheman Member

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    Sorry my comment was more broad. not specifically this task.. But many tasks. For example using pwm as opposed to a 555 timer circuit.
     
  11. @rt

    @rt Member

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    Nice, but I'd like to see it made as small as possible.
     
  12. Robzy

    Robzy Member

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    Er, you don't really make any sense.

    1) A 555 timer circuit is an IC, so saying there's "too much of a reliance on ICs" doesn't really make sense.

    2) How does one "use pwm" as opposed to a 555 timer circuit? Isn't a 555 simply a component that can be used to fulfil a PWM function?

    Rob.
     
  13. aXis

    aXis Member

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    You can definitely use a 555 to do PWM type functions, but there are only specific scenarios where it works well. Generally manual control through variable resistors is fine, but not so good for feedback control because the "control" input is not linear or full range.

    A dedicated PWM controller will do a better job with fewer components.
     
  14. Robzy

    Robzy Member

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    Oh, did I misunderstand danstheman?

    I thought he was saying "Too many people use a PWM controller instead of a 555," but did he mean to say "Too many people use a 555 instead of a PWM controller?"

    Rob.
     
  15. cvidler

    cvidler Member

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    Seems some people mistake IC's (like a simple 7404) with microcontrollers.

    Yes it's simpler to make a timer circuit from a 555 treating it as a discreet component, than a ATMEL/PIC/etc. that'll require support components and programming.
     
  16. danstheman

    danstheman Member

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    Im not particularly good at explaining myself.

    The point i was trying to make is that people use microcontrollers where a much simpler and cheaper circuit would be more reliable and suitable.

    Kind of off topic.
     
  17. OP
    OP
    2xCPU

    2xCPU Member

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    Perfection is achieved, not when there is nothing more to add, but when there is nothing left to take away.
    Antoine de Saint-Exupery
    (1900 - 1944)
     

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