This rubber dog toy is my first atari punk machine.It's an altered hot dog which includes a speaker and a 9V battery.Inside, a circuit based on 555 timer.The output of a first NE555, operating as an astable oscillator, is connected to the input of a second NE555 which acts as monostable oscillator.It generates a square wave signal which is played through the embedded speaker.This resolutely lo-fi sound is modulated via two control features.A potentiometer set the pulse width.The oscillation frequency is paired with a photoresistor, it's a component that captures light.Variations of light intensity affects the signal frequency.The hot dog makes notes out of light, rambling from lows to highs, as he goes from darkness to enlightenment.
