Guitar output signal amplifier and biaser to allow analog read by RPi Pico

257

02:03:59

Intro:
We pass a 10mV Guitar signal output through a 1uF cap to decouple the circuit. 

We next pass that signal through a 50:1 non-inverting amplifier

Finally we decouple the amplified AC and DC bias it  +1.55 V DC to be read   right in the center of the RPI pico's ADC range.

published 3 years ago

lmccoig

3 years ago

You might get magnetic speaker to work with your amplifer as speach registered 10 to 15 millivolts with PM speaker. PM speaker would work as microphone connected to my cell telephone jack.

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