The USB port receives 5V of from the computer. It also both receives and sends electrical signals between the Arduino system and the computer. The Arduino microcontroller then transmits this electrical energy in pulses to the resistor, through wires and the breadboard. The resistor resists flow of electrons. It converts some of the electrical energy to heat, which is released into the air. This decreases the voltage of energy flowing into the piezoelectric speaker. That helps protect the speaker, and it also will decrease the speaker volume. The speaker converts the remaining electrical energy to mechanical energy. As the electrons flow through the piezoelectric material in pulses, the speaker expands and contracts in pulses, too. This also makes the air around it expand and contract in waves. Our ears hear these waves as sound. The remaining electrical energy is essentially used up after going through the speaker. The electrons flow back to the Arduino and back into the computer. Reference: Started with Arduino”. Arduino SA. . Feb 2014. “Getting
The USB port receives 5V of from the computer. It also both receives and sends electrical signals between the Arduino system and the computer. The Arduino microcontroller then transmits this electrical energy in pulses to the resistor, through wires and the breadboard. The resistor resists flow of electrons. It converts some of the electrical energy to heat, which is released into the air. This decreases the voltage of energy flowing into the piezoelectric speaker. That helps protect the speaker, and it also will decrease the speaker volume. The speaker converts the remaining electrical energy to mechanical energy. As the electrons flow through the piezoelectric material in pulses, the speaker expands and contracts in pulses, too. This also makes the air around it expand and contract in waves. Our ears hear these waves as sound. The remaining electrical energy is essentially used up after going through the speaker. The electrons flow back to the Arduino and back into the computer. Reference: “Getting Started with Arduino”. Arduino SA. . Feb 2014.
Circuit%20Diagram%20Instructions.docx