digital voltmeter

444

09:34:50

Change the voltage of the power source near the 7-segment display.
-nikisalli 

published 10 years ago

billoute720

10 years ago

Very nice job 😊. Do you think it should be possible to get this display : when 2.8<V<3.2 display 3. When 3.3<V<3.7 display 3/4. When 3.8<V<4.2 display 4.

nikisalli

10 years ago

Yes but i didn't made that to keep the design simple and easily comprensible ;-)

billoute720

10 years ago

Ok thanks anyway for your answer 😊

giomix

10 years ago

Is input impedance of this voltmeter total 3k ?

nikisalli

10 years ago

But you can change those to 2Megaohm and 1 Mohm to have an higher impendance

giomix

10 years ago

it seems an "integer-values" discriminator, from 0 to 15 volts. To which real application may be used?

nikisalli

10 years ago

As a voltmeter-ammeter-ohmmeter or as a general purpose adc

Matus

10 years ago

HOW COULD U BUILD IT THIS SIMPLE?!

Matus

10 years ago

Amazing. In my case I would use much more parts if I were u.

billoute720

10 years ago

@nikisalli I found a simplification 😊 : replace the 555 oscillator by a logic train component 😛

nikisalli

10 years ago

No because in the simulation it takes some time to start oscillating while the 555 oscillates instantly

Djelimandjan

10 years ago

Djelimandjan

chandrou

9 years ago

Very nice

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