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3.3V-5V micro:bit Expansion Board
The 3.3V-5V micro:bit Expansion Board is a compact adapter board for making micro:bit wiring easier. It breaks out common micro:bit pins and supports 3.3V to 5V level conversion, making it useful for selected sensors, modules, and classroom projects.
This board is helpful for students, teachers, makers, and beginners who want a cleaner way to connect I2C modules, digital modules, analog sensors, and power inputs to a micro:bit project.
Why Choose This Expansion Board?
- Makes micro:bit pins easier to access.
- Supports 3.3V to 5V level conversion.
- Includes I2C, digital, and analog interfaces.
- Useful for sensors, modules, LEDs, and STEM projects.
- Has a micro USB 5V interface for power input.
- Includes a 3.3V battery case interface.
- Has a self-resetting fuse for added protection.
- Includes power on/off control for easier testing.
Common Applications
- micro:bit STEM projects
- Sensor and module wiring
- I2C device testing
- Digital input and output projects
- Analog sensor experiments
- Classroom coding activities
- DIY micro:bit prototypes
- Basic electronics practice
What’s Included?
- 3.3V-5V micro:bit Expansion Board - 1 pc
Note: micro:bit board, USB cable, battery case, sensors, jumper wires, and other accessories are not included unless stated in the package.
Technical Specifications
| Product Type | micro:bit expansion board with level conversion |
|---|---|
| Voltage Support | 3.3V and 5V level conversion |
| I2C Interface | Supported |
| Digital Interface | P8 to P16 |
| Analog Interface | P0 to P2 |
| Battery Case Interface | 3.3V |
| Micro USB Interface | 5V |
| Protection | Self-resetting fuse |
| Power Control | Power on/off switch |
| Board Size | 67mm x 29mm / 2.64in x 1.14in |
| Best For | micro:bit projects, sensors, I2C modules, classroom activities, and STEM learning |
| Skill Level | Beginner to intermediate |
Setup Notes
Insert the micro:bit into the expansion board, then connect your sensors or modules to the matching I2C, digital, analog, power, and ground pins.
Check the voltage needs of each module before use. Some parts work at 3.3V, while others may need 5V support. Always match the wiring before powering the circuit.
Important Notes
- micro:bit board is not included.
- Check pin labels before connecting modules.
- Use the correct voltage for each connected part.
- Do not overload the power output pins.
- Disconnect power before changing wiring.
- Use care when working with 5V modules and 3.3V logic boards.
Recommended Add-ons
- micro:bit boards and accessories
- Sensors and modules
- Jumper wires
- Breadboards and prototyping parts
- STEM kits
FAQ
What is this board used for?
It is used to make micro:bit wiring easier for sensors, modules, I2C devices, digital pins, and analog inputs.
Does it include a micro:bit board?
No. This listing is for the expansion board only.
Does it support 5V modules?
It supports 3.3V to 5V level conversion. Always check your module voltage needs before wiring.
What pins are available?
It includes I2C, digital P8-P16, and analog P0-P2 interfaces.
Is this good for classroom use?
Yes. It is useful for STEM lessons, coding practice, and micro:bit electronics projects.
Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.
Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.
Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.
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