Sound system

This system is responsible for the controlled vibration of the water droplets. For this reason a speaker is attached at the end of the water pipe. The device uses a 1 W speaker, an electrical circuit acting as an amplifier and an Arduino UNO microcontroller, as shown in the figures below.





Hardware Required

  • Arduino Board

  • 10k ohm potentiometer

  • 10 ohm resistor

  • 0.1 μF capacitor

  • 1000 μF capacitor

  • LM386 IC

  • Speaker (we used a 8 Ohm, 1 Watt speaker)

  • hook-up wires

  • breadboard

Circuit


Additional material

  1. fritzing file

  2. Arduino sketch