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#