9. Octopus Passive buzzer Brick OBPB01(EF04031)#

9.1. Introduction#

  • Octopus Passive Buzzer Brick is based on a passive buzzer, it could control the volume by PWM.


9.2. Characteristics#

  • The 3-pins ports is easy to plug and play.

  • It can work with micro:bit in 3V.

9.3. Specifications#

Item Parameter
SKU EF04031
Power Supply 3V-5.5V
Connector Type Analog
Pins Definition 1-Signal 2-VCC 3-GND
Response Quick response with high sensitivity
Circuit Simple
Stability Stable and durable

9.4. Outlook and Dimensions#


9.5. Quick to Start#

Materials used and connection diagram#

  • Connect to the P0 port as the picture shows

    Take sensor:bit for example


Program as the picture shows#

  • Playing a melody when power is on.



Links: https://makecode.microbit.org/_Yew55FJateYP

You can also download the links below:


  • The buzzer is playing a melody when power is on.

9.6. Relevant Cases#

9.7. Technique Files#