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Small 12v DC circuit design with display screen
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Engineering & Manufacturing > Electrical

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  • Posted: Fri, Oct 05, 2012
  • Time Left: Closed
  • Location: Anywhere
  • Client prefers freelancers from:
    Anywhere

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

    The client prefers freelancers from
    a different location.

    You're still able to submit a proposal for this job, regardless of your location.
  • Start: Immediately
  • Budget: Less than $500
  • Fixed Price Job
  • Elance Escrow Protection
  • U.S. freelancers must have W9
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Hello,
I am looking for a circuit design with the following parameters:
12v DC circuit design for aftermarket automotive application.
System Requirements:

1) ON/OFF Switch
2) Temperature display
3) Voltage display
4) Reservoir level display (5 bar graph)
5) Heating element ON (heating) display
6) Have a sensor that breaks circuit to heating element when voltage drops below 9.6v
7) Have a sensor that breaks circuit to heating element when reservoir level drops to 1 bar
8) Have a sensor that breaks circuit to heating element when temperature exceeds 110 degrees Fahrenheit

Smallest design possible with a small screen that will display status of items 1-5. No user input other than ON/OFF switch.
------------------------------------------
Added 6 OCT 2012, 1:05 AM EDT
The reservoir level is determined by a signal sent from a sending unit similar to a fuel tank float sending unit.
The heating element has a very large draw and will be connected to a separate automotive type...

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Job ID: 34102607
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