Skip to content

We have ✅ 4 available of the EF-EF04031 in our Sydney warehouse. An extra 100 units will be available shortly.

Express post delivery (2-5 business days)

Octopus Electronic Bricks, you can use them build electronics projects just as easy as piling bricks. By using Octopus electronic bricks, you may connect Arduino/Freaduino compatible boards easily with various digital, analog and I2C/Uart interfaces. These the breadboard-less firm connection are prepared to extensive modules like poteniometers, sensors, relays, servos even buttons, just plug and play. 

Octopus Passive buzzer Brick is based on a passive buzzer, it could control the volume by PWM. The distinction is active buzzer stickers. 


Power supply needs: 5V

Interface type: Analog

Pin Definition: S-Sigal V-VCC G-GND

Wide detecting scope

Fast response and High sensitivity

Simple drive circuit

Stable and long life

Size: 19x27mm

Quick Start

Hardware Connection

Connect the buzzer to P0 port on OCTOPUS:BIT. 



You can see the whole program from the link here


The buzzer emits a series of sound with 2 Hz frequency.


Please visit the ElecFreaks wiki page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials. 

The Octopus Passive buzzer Brick OBPB01 appears in the following collections:

SKU EF-EF04031

Customer Reviews

Based on 1 review
William MacGregor
Octopus Passive buzzer Brick OBPB01

I give the Octopus Passive buzzer Brick OBPB01 a rating of 5 stars!