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Current meter circuit

Discussion in 'Electronic Basics' started by Dan Ritter, Jan 15, 2005.

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  1. Dan Ritter

    Dan Ritter Guest

    Does anyone have a simple circuit for a digital ammeter? I have a car
    project that I want to monitor how much current the circuit is using. I
    thought it would be nice if I could have an LED readout of the current
    around the dash. The circuit should use about 3 or 4 amps and I would
    like to know if it's going way off of that.

    Thanks :cool:
     
  2. Bob Masta

    Bob Masta Guest

    Harbor Freight has DMMs that regularly go on sale for
    under $5.00 each, often down to $3.00. They have a 10A
    range that should be just right. At these prices you can
    afford to carve them up and hard-wire them into your projects.

    Best regards,


    Bob Masta
    dqatechATdaqartaDOTcom

    D A Q A R T A
    Data AcQuisition And Real-Time Analysis
    www.daqarta.com
     
  3. Dan Ritter

    Dan Ritter Guest

    Thanks for the tip. I guess if I had grown up in the US I probably
    would have known about that place. It reminds me of a place I sometimes
    buy from here in Canada. However as hard as I rack my brain right now I
    can't get the name past the tip of my brain. These guys have some
    really good deals. I'm glad you put me on to them. I still wouldn't
    mind seeing a simple circuit just in case I don't go that route for
    whatever reason. But that does look like the best solution.

    Thanks :cool:
     
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