micro:bit Sensor IO Expansion Board
Breaks every micro:bit pin out to GVS sensor headers with selectable 5 V on P11-16 and an on-board buzzer.
- Material
- PCB & electronic components
- Age range
- 8+
- Category
- STEM Robotics & Electronics
- Customisation
- OEM & ODM available
Specifications, component counts and packaging are configurable. Figures shown reflect our standard configuration.
Key features
- All micro:bit pins brought out to standard three-color GVS sensor headers; I2C pins broken out separately.
- Passive buzzer switchable by jumper.
- All ports run on 3.3 V; pins P11-P16 can be switched to 5 V output for sensor modules (requires external USB 5 V supply via the slide switch — 5 V input is NOT supported and may damage the micro:bit).
Frequently asked about this product
Which mainboards does the micro:bit Sensor IO Expansion Board stack onto?
The micro:bit Sensor IO Expansion Board follows the standard shield pinout, so it stacks directly onto Arduino UNO R3 and compatible boards (including our own UNO-compatible controllers) and lines up with the same footprint on larger Mega-class boards. All I/O is level-tolerant across 3.3 V and 5 V systems.
What voltage does the micro:bit Sensor IO Expansion Board run on?
The micro:bit Sensor IO Expansion Board runs from a standard 3.3-5 V DC supply (USB or the controller’s 5 V rail). It draws only a few milliamps in normal operation, so it is safe to power from the controller board itself for classroom builds.
What projects is the micro:bit Sensor IO Expansion Board good for?
The micro:bit Sensor IO Expansion Board is built for STEM and robotics education: classroom demonstrations, science-fair projects, robotics club builds and competition robots. It pairs with the rest of our module range — same connectors, same voltage, same toolchain — so students move from first circuit to competition robot without changing platforms.
What certification do the robotics and electronics products carry?
Controller boards, sensors and modules ship with CE marking and RoHS-compliant components, and the range is designed for classroom use under teacher supervision. Product-specific test reports and declarations of conformity are available for distributors on request.
What is the minimum order quantity, and can I get a sample first?
These are standard catalogue lines with stable production, so minimums are low and lead times are short. Samples ship within about a week and are normally credited against a first order. Mixed-SKU cartons are accepted for evaluation orders.
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Need pricing on this line?
Send your target quantity, destination market and any changes you need to artwork, colourway or packaging. We reply with a quotation and the applicable compliance route — usually within one working day.