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JRE
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I need to read DC voltages on Arduino that can vary between -15V and 15V. As far as I know, Arduino can only read positive voltage values ​​between 0-5V.

I have thought aboutof using a voltage divider with a positive reference (the 5V from the Arduino).) Could it be achieved by connecting the voltage divider with a positive reference to another with 0V as a reference? Or, or would there be other, better options?

Thanks a lot.

I need to read DC voltages on Arduino that can vary between -15V and 15V. As far as I know, Arduino can only read positive voltage values ​​between 0-5V.

I have thought about using a voltage divider with a positive reference (the 5V from the Arduino). Could it be achieved by connecting the voltage divider with a positive reference to another with 0V as a reference? Or would there be other better options?

Thanks a lot.

I need to read DC voltages on Arduino that can vary between -15V and 15V. As far as I know, Arduino can only read positive voltage values ​​between 0-5V.

I thought of using a voltage divider with a positive reference (the 5V from the Arduino.) Could it be achieved by connecting the voltage divider with a positive reference to another with 0V as a reference, or would there be other, better options?

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Libegria
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Read in Arduino negative and positive voltages in a wider range

I need to read DC voltages on Arduino that can vary between -15V and 15V. As far as I know, Arduino can only read positive voltage values ​​between 0-5V.

I have thought about using a voltage divider with a positive reference (the 5V from the Arduino). Could it be achieved by connecting the voltage divider with a positive reference to another with 0V as a reference? Or would there be other better options?

Thanks a lot.