In the electronic instrument building module I had the opportunity to examine electronics. We were required to build two instruments with the use of integrated circuits. I had a chance to study electronic oscillators and ways to modulate the sound by changing components. I have designed and built two fully working instruments, prepared the documentation, and created schematics for both of them.
The second project on electronic instrument building was affected by the lockdown, so access to the resources was limited. However working with those limitations inspired me to do something from the things that I had at home.
My attention was drawn to a box which I have received as a Halloween gift from Amazon. It was a small wooden box with a sliding lid, containing a spider toy on a bend wire that is meant to scare a person who opens the box. I decided to use it as a basis for an instrument. I thought that transforming this, a not necessarily useful object, into something interesting would be a great idea.
Inspired by a Stylophone I have decided to remake this toy into an electronic instrrument that was going to work on the same principal - closing the circuit by touching the pieces of copper tape with the stylus. My desire was to make precise seven notes of the C Major scale. To achieve that I have used various combinations of resistors and tested the sound with a sound meter app.
To use the box to its' full potential I have used a vibration speaker (speaker that has no resonator). So the instrument did not need any external components (apart from the battery).
Unfortunately, I did not achieve my desired effect despite everything working on the test board.
To complete my documentation, I have used ProfiCAD. With this complete schematic you can recreate my Stylobox and maybe make it work as intended.
