micro:Driver Expansion Board for micro:bit / UNIHIKER (DFR0548)
Expansion board (63×58 mm) for micro:bit, UNIHIKER M10, and K10 adding 4 DC motor channels (HR8833, 1.5 A continuous each, also usable as 2 stepper channels), 8 servo interfaces, and 9 GPIO pins via dual I2C control. Powered from 3.5–5.5 V via DC 2.1 connector.
Pinout
- Servo interfaces (8)Type · Control
- GPIO (9)Type · Signal
- I2CType · Signal
- DC 2.1 powerType · Power
- GNDType · Ground
- micro:bitUNIHIKER edgeType · Signal
| Pin | Type |
|---|---|
| Servo interfaces (8) | Control |
| GPIO (9) | Signal |
| I2C | Signal |
| DC 2.1 power | Power |
| GND | Ground |
| micro:bitUNIHIKER edge | Signal |
Pin details
6 connections- Servo interfaces (8)Control
- GPIO (9)Signal
- I2CSignal
- DC 2.1 powerPower
- GNDGround
- micro:bitUNIHIKER edgeSignal
Start wiring
USB · 3.3 V
Confirm the data interface matches your host board.
Module pins: DC 2.1 power, GND, GPIO (9), I2C, micro:bit / UNIHIKER edge. Schematik maps them to your board in the app.
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