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Timer Project
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Engineering & Manufacturing > Electrical

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The client has made the following changes to the job.


Job awarded.

Jan 5, 2011

Job Description

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  • Posted: Thu, Dec 30, 2010
  • Time Left: Closed
  • Location: Anywhere
  • Client prefers freelancers from:

    You are still able to submit a proposal for this job.

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    a different location.

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  • Start: Immediately
  • Budget: Less than $500
  • Fixed Price Job
  • Elance Escrow Protection
  • W9 Not Required
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Scope: The purpose of project is to design a timer that will increment in real time when a 12 volt circuit is activated. Optionally, it would be preferable to have two separate timers in one device with either two displays or a switch to control one display.

Timer Specification:

Display: Timer display will show hours minutes and seconds. Display will be digital LCD. There shall be a momentary switch to illuminate the display for 10 seconds.

Battery Backup. Timer should be energy efficient and must be able to function on internal backup power for 48 hours or longer. Backup battery shall have a charging circuit as part of the timer design. Battery should not need replacement sooner than 5 years and if dead, the timer circuit should still function if power is continuously maintained to the timer. Battery type should be commonly available.

Controls: Momentary Reset Button resets timer(s) to zero. Timer function starts when the switch is released. If it is possible for ...

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