PlectralEffects Update

 

If you are curious as to the status of my project.  I am still awaiting parts, the BeagleBone Black and the majority of the parts have not arrived -- Currently, I have been testing physical prototypes of the plectrum itself.  I have decided, mainly due to limited availability of parts on hand to try a conductive based approach. 

 

The plectrum will be constructed as a sandwich... No, not a cheese and onion sandwich but rather a construction of conductor -> insulator -> conductor.  Both conductors will be fed to an amplification circuit to detect conduction to a steel string common return, possibly ground on the audio pickup jack of an electric guitar.

 

IMG_20151227_004025.jpg

 

 

I will have to test the conductivity between the contact point and string, but a simple amplifier should ensure that even higher levels of resistance could create an appropriate trigger level for the BBB controller :

plectrumImg

 

 

 

plectImg2

 

 

On my next blog post, I will connect up the plectrum prototype to a microcontroller,  that I have on hand (possibly not the BBB) for further processing.