Guitar Tuner Schematic

martes, 31 de julio de 2018
Its been a while but i have now the schematic for the Low power guitar tuner explained in previous posts, so let describe you the sections

Adquisition stage:

This is the microphone amplification MAX4466 tha will be conected to oune of the inputs of the MCU to detect the tune of the guitar.

Next is the user inteface that consists of LEDs in this case will be reversed mounted LEDs.
This leds will tell the user the tone detected and tell if the guitar string needs to be tighten or a bit loosen.

 In the next post i will upload the PCB route and also the file in eagle so that anyone can DIY it.

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