DFRobot micro:bit Breadboard Expansion Board (micro:bit not included)

The DFRobot micro: Breadboard micro Expansion Board is a solder-free development platform designed for building and debugging micro electronic circuits. It provides access to 19 micro I/O pins through pin-header and female-header connectors, allowing direct connection of electronic components on the included 16.2 × 7.2 cm breadboard. The board operates from 3.3–5 V and includes a Micro USB 5 V power interface, independent power switch, PWR indicator, and 2 onboard A/B buttons. It supports visual programming, Mind+, and Python, making it suitable for STEM education, circuit prototyping, and micro applications such as lighting control, smart doorbells, and temperature alarms.

Features

Breadboard Interface: Includes a 16.2 × 7.2 cm middle-size breadboard for solder-free circuit assembly and testing.

I/O Connectors: Exposes 19 micro I/O pins through pin-header and female-header connectors.

Power Interface: Provides a Micro USB 5 V power input with an independent power switch.

Voltage Range: Supports an operating voltage of 3.3–5 V, with digital output at 0 V or 3.3 V.

Onboard Controls: Includes 2 programmable A/B buttons for user input and project control.

Status Indicator: Integrated PWR indicator provides visual power-status indication.

Programming Support: Compatible with visual programming, Mind+, and Python development environments.

Mounting Interface: Provides M3 mounting holes for mechanical installation.

Specifications

Compatibility: micro:bit

Operating Voltage: 3.3–5 V

Digital Output Voltage: 0 V / 3.3 V

Analog Output Voltage: 0–3.3 V DC

I/O Interface: 19 × micro:bit I/O pins

Connector Type: Pin header and female header

Power Interface: 5 V Micro USB

Power Interface Quantity: 4

Ground Ports: 4

Breadboard Size: 16.2 × 7.2 cm

Mounting Holes: M3

Board Dimensions: 16.2 × 7.2 cm

Links

- DFROBOT Product Wiki