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Topic: Converting Analog ammeter to Digital Meter Using Arduino (Read 230 times) previous topic - next topic

TomGeorge

Hi,

What do you want to do with it?


 What is your electronics, programming, arduino, hardware experience?



Tom.... :)
Everything runs on smoke, let the smoke out, it stops running....

Grumpy_Mike

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Meaning I couldn't power my Arduino using USB connection?
Yes unless the USB has an isolated lead or the inputs are not referenced to the ground on the power supply.

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You mean I could only monitor 1 meter with 1 Arduino and requires 3 Arduino to monitor all the 3 meters?
Yes, unless again you have isolated each input's referenced level from each other. This is why I said:-

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Maybe a flying capacitor isolation circuit might work?
But those need relays and a change in the relay contacts is needed for each reading, so you can't read it very fast.

cullen197

I had inquired about the detail of the meter from its maker. They replied it's a moving coil meter and basic range of the meters are DC 5 volts.

So can I tap a wire parallel-ly from the meter itself to the Arduino board A0 and GND to measure it digitally?

TomGeorge

Hi,
Can you please answer post #15 please.
Also do you know what its output voltage is, this looks like a serious piece of professional broadcast gear.

Do you know what this piece of equipment does?

Tom.... :)
Everything runs on smoke, let the smoke out, it stops running....

Grumpy_Mike

Quote
So can I tap a wire parallel-ly from the meter itself to the Arduino board A0 and GND to measure it digitally?
No.

Have you understood nothing of what I have told you?

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