Hey, y'all. I'm working on a guitar tuner, and I've just finished building an op-amp that will amplify the signal from the guitar to a range that the Arduino can read. The only thing left to do is offset the signal such that the entire signal is positive so the analog pins can read it. What I've be…

Adding DC offset to Amplified Signal using Arduino's 5V and GND

system December 11, 2012, 11:56pm 3

Here is the op amp I currently have constructed.

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