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  1. #1
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    LED voltmeter schematic needed

    Hello, I need a simple to make LED based (not 7-segment) voltmeter to monitor the voltage of a variable supply.
    I have found this circuit
    http://electroschematics.com/wp-cont...er-Circuit.png
    How could I transform it in order to achieve greater resolution? (zeners are of standard values)

    •   Alt29th July 2012, 16:44

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  2. #2
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    Re: LED voltmeter schematic needed

    See this examples :



    http://www.next.gr/search.php?what=lm3914&type=1



    Instead relays you can use leds.
    Last edited by tpetar; 29th July 2012 at 16:58.



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