The Kitronik MI:sound speaker board is a high-quality audio accessory designed for the BBC micro:bit V1 and V2. It features an onboard powerful speaker, a CR2032 battery holder, thumbwheel volume control, and an easy-access on/off switch.

This board can be powered either by the included CR2032 coin cell battery or via the micro:bit’s USB or JST connections, making it versatile for various projects.

It connects to the BBC micro:bit using only Pin 0, 3V, and GND, ensuring simple integration. The speaker is louder than the micro:bit’s built-in buzzer and allows volume control without coding changes.

Key Features:

• Power your BBC micro:bit with an elegant PCB design.
• Onboard loud speaker for enhanced audio output.
• Thumbwheel potentiometer for easy volume control.
• Includes onboard CR2032 battery holder and coin cell.
• Easy-access on/off switch for simple power management.
• Compatible with BBC micro:bit V1 and V2 boards.

Package Contents:

• 1 x MI:sound speaker board for BBC micro:bit V2
• 3 x 12mm M3 Countersunk Screws
• 3 x M3 Steel Nuts
• 3 x Nylon Spacers
• 1 x CR2032 Coin Cell Battery

Technical Specifications:

• Voltage Rating: +3.3V max.
• Typical Current Draw (CR2032 battery): 46.6mA (max volume music)
• Speaker Output at Max Volume (CR2032): approx. 60dB at 0.3m
• Typical Current Draw (powered via micro:bit USB): 129mA
• Speaker Output at Max Volume (micro:bit USB): approx. 75dB at 0.3m
• Typical Battery Life: more than 8 hours

Dimensions:

• Length: 51.6 mm
• Width: 43.0 mm
• Height: 27.5 mm

For assembly, attach the micro:bit using the provided screws, nuts, and spacers. It is perfect for projects requiring louder sound and simple volume control without code changes. The MI:sound is ideal for micro:bit projects on the move.

Download Datasheet (PDF)