Octopus Passive buzzer Brick OBPB01
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Octopus Passive buzzer Brick OBPB01
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The Octopus Passive Buzzer Brick is a plug-and-play buzzer module from the Elecfreaks Octopus series. Unlike an active buzzer, the passive design lets you co...
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The Octopus Passive Buzzer Brick is a plug-and-play buzzer module from the Elecfreaks Octopus series. Unlike an active buzzer, the passive design lets you control both tone and volume via PWM, making it ideal for generating melodies, alarms, and sound effects.
Part of the Octopus Electronic Bricks range, it connects directly to Arduino, micro:bit (via Octopus:bit), and other compatible boards using a standard 3-pin analogue interface — no breadboard or soldering required.
Key Features
- Passive Buzzer – PWM-controllable tone and volume
- Plug-and-Play – 3-pin connector (Signal, VCC, GND) for breadboard-free wiring
- Wide Compatibility – Works with Arduino, micro:bit, and other 5 V boards
- Compact Size – 19 × 27 mm
Specifications
- Power Supply: 5 V
- Interface: Analogue (3-pin: S / V / G)
- Dimensions: 19 × 27 mm
Package Contents
- 1× Octopus Passive Buzzer Brick (OBPB01)
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- GND
- GND is the ground or reference connection (0 V) for a circuit. When connecting two devices together, their grounds must be joined so both agree on what counts as a low or high signal.
- PWM
- Pulse Width Modulation is a way for a digital pin to simulate variable output power by switching on and off very quickly. It matters for controlling things like LED brightness, motor speed, or servo-style signals from a microcontroller pin.
- VCC
- VCC is the positive power-supply connection on a chip or module. Connecting it to the correct supply voltage is needed for the part to power on and helps avoid damaging the electronics.
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