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.


9.3. Characteristics#

The 3-pins ports is easy to plug and play. It can work with micro:bit in 3V.

9.4. 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

9.5. Outlook and Dimensions#


9.6. 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.

9.7. Relevant Cases#

9.8. Technique Files#