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"Thanks a lot" is a sarcastic remark that means "your assistance actually made the problem worse."

edited May 14, 2022 at 20:27

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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 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?

arduino voltage-measurement

asked May 14, 2022 at 17:42

Libegria