Buzzer (sensor)

Buzzer (sensor)

Regular price $3.00 Sale

Like a magnetic speaker, it needs voltage with different frequency so that it can make sound accordingly. The pitch becomes louder when the frequency gets higher.

Description of Pins

General Pin Out Sensor / Trinket's Pin Out
PIN3 (SIGNAL-A) Digital Output
PIN4 (SIGNAL-B) Not Connected
  • General Pin Out is the standard pin out of a Sensor / Trinket connector.
  • Sensor / Trinket's Pin Out is this specific Sensor / Trinket's wiring in relation to the General Pin Out.
  • SIGNAL-A / SIGNAL-B are signals that could be digital input, digital output, analog input or analog output. Or special signals such as serial communication (SoftwareSerial, IIC (I2C), etc) or other special signals.
  • Not Connected refers to the Pin not being used for this particular Sensor / Trinket.
  • Read more about the hub module.


  • Controllable sound frequency (eg: You can achieve the effect of piano spectrum with it. )
  • Small size which is easy to install.


  • Voltage
    • 3.3V~5V working voltage
  • Size
    • Size of the board: 23.5mm*13mm
    • 1.27mm-spacing 4Pin interface connected with sensorhub.
    • The CAD drawing of the sensor: File:Sensor
  • Technical parameters
    • Drive with 2K~5K square wave
    • The sound frequency is controllable.
  • Connection
    • This sensor can be connected to the following interfaces of core: A0~A7,D2~D13