A project log for Accesible Guitar Tuner

A guitar tuner with audio feedback for bind guitarists

pepijn-de-vosPepijn de Vos 08/31/2017 at 14:400 Comments

In the original FFT based project, I was very much resource constrained. I read PIC has some nice DSP features, so my original plan was to use a dsPIC.

However, sampling from Microchip took way too long, so by the time they arrived I had already started with an Atmega328. Due to the new algorithm this turned out to be okay.

I also learned later that PIC does 2 cycles per instructions, so the 40MHz is about the same as 20MHz AVR.

I transferred the breadboard circuit to stripboard, and did more testing. This seemed promising, so I proceeded with designing the PCB.