8. Octopus Active Buzzer Brick OBAB02(EF04030)

8.1. Introduction

Octopus Active Buzzer Brick is based on an active buzzer with a constant volume but can not be controlled by PWM.


8.2. Characteristics

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

8.3. Specifications

Item Parameter
SKU EF04030
Power Supply 3V-5V
Connector Type Analog
Pins Definition S-Sigal V-VCC G-GND
Detection Scope Large
Response Quick
Sensitivity High
Circuit Simple
Service Life Long(Stable and durable)
Size 19x27mm

8.4. Outlook and Dimensions


8.5. Quick to Start

Materials used and connection diagram

  • Connect to the P1 port as the picture shows

    Take sensor:bit for example


Add Package

Program as the picture shows



Links: https://makecode.microbit.org/_3KMCFREjmbYx

You can also download the links below:


  • The buzzer gives off a continuous beeping sound.

8.6. Relevant Cases

8.7. Technique Files