> For the complete documentation index, see [llms.txt](https://learn.arduinosa.co.za/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://learn.arduinosa.co.za/sensor-kits/37-in-1-sensor-kit/buzzer.md).

# Buzzer

![](https://451694785-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MPda5vaSVRKTQ6AoAmb%2Fuploads%2Fgit-blob-7765055f1a3e32082e102c25d98a535b24ee7d36%2Fimage.png?alt=media)

Electronic buzzer for 5 V operation. **Ensure correct polarity!! Positive** supply to the ‘-’ pin and ground to the ‘S’ pin! Data: Typical operating frequency 4000Hz at 80dB min, 5V DC at 5mA typical TMB12A05 or equivalent.

Tip to avoid mix up: The buzzer housing is slightly taller than the loudspeaker housing and has a label showing the + pin ident.