how to make voltmeter without micro controller ??

Ghostknight2010 · May 31, 2012

how can i make voltmeter with ADC0808 without micro controller
this is my project in my collage !!!
can anyone help me ?!!
thx in advance :!:

abhi_tandon80 · May 31, 2012

put LED on output of ADC or use BCD to Seven segment decoder with seven segment display's

godfreyl · May 31, 2012

You need to convert the 8 bit binary to BCD first. That will be the hard part. There's one idea here: https://answers.yahoo.com/question/index?qid=20090916115256AAdpWib

ahsan_i_h · May 31, 2012

Put eight LEDs at output of ADC0808. Then we will say that this is a voltmeter with BINARY display.
Or better to change project and take a new project like making a voltmeter with ICL7107.
In ICL7107 there is A/D conversion with direct BCD output, but no BINARY to BCD convertion.

how to make voltmeter without micro controller ??

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how to make voltmeter without micro controller ??

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