Learn about interfacing Buzzer with Arduino. 

Buzzer module and tone generation

Playing  a melody

Components List

• Arduino Uno DIP -1
• Arduino Uno Cable -1
• Bread Board Big - 800 pin -1
• LED 5mm Yellow -2
• Resistor 220 Ohm (0.25W) - 2
• Jumper Wires (male - male) 
• Single Strand Wires
• 9v Battery -1
• Buzzer Module -1
• Buzzer 12V - 1
• Wire Stripper -1
• BC 547 Transistor -1