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Author Topic: How to read +/- 4 volts using Arduino  (Read 672 times)
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Hello:
I want to ask you if it is possible to read a voltage signal +/- 4 volts using Arduino. It is a sinus signal, which is going from +4volts to -4volts and vice versa.
Could you explain me how to do that step by step.
Thank you very much for your help.
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Rapa Nui
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For example:


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Quote
I want to ask you if it is possible to read a voltage signal +/- 4 volts using Arduino.
No, the Arduino can not read negative voltages.
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Thanks Pito !.
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