9. Octopus Passive buzzer Brick OBPB01

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