The buzzer is used to sound an alarm or notify using sound or music.

Examples:

1. Water Meter: flow sensor measures flow rate and buzzer sings a song when the tap is in use.
2. Security breach alert: motion sensor detects pests, stray animals near a house at night and buzzer sends a loud alarm to scare them away.

Pin:

• D8 pin on the SNT Kit PCB. (the buzzer is on the PCB and does not need other wire connections)

Code

• Click here for the code to test your buzzer (Twinkle Twinkle Little Star).
• Click here for the code to test your buzzer.