Hello, I have a really simple question. I want to read an AC voltage (from -2.5v to 2.5v) from an arduino input pin. I know that I cannot just plug it into the pin since the negative voltage will most likely damage the board. I tried googling and read that a have to shift the voltage so that 0v becomes 2.5v. I read that I have to use 2 resistors and a capacitor but I don't know what values to use and how to arrange the schematic.
Thanks in advance!! Tyler