
micro:bit IoT expansion board with integrated WiFi, OLED display, motor drivers, GPIO, I2C, serial, buzzer, RGB LEDs, servo outputs, Li-ion battery holder, charging circuit, and Gravity connectors.

| Pin | Type |
|---|---|
| P0 | GPIO |
| P1 | GPIO |
| P2 | GPIO |
| P8 | GPIO |
| P12 | GPIO |
| P16 | GPIO |
| Motor1 +- or DIRPWM | PWM, Signal |
| Motor2 +- or DIRPWM | PWM, Signal |
| Servo1 (PWMVCCGND) | Power, Signal |
| Servo2 (PWMVCCGND) | Power, Signal |
| I2C1 (SDASCLVCCGND) | Power, I2C, Signal |
| I2C2 (SDASCLVCCGND) | Power, I2C, Signal |
| Serial (TXRXVCCGND) | Power, UART, Signal |
| 6-way IOGPIO ports | Signal |
| Gravity connectors (multiple) | Signal |
USB · 3.3 V
Confirm the data interface matches your host board.
Module pins: P0, P1, P2, P8, P12, P16, Motor1 +/- or DIR/PWM, Motor2 +/- or DIR/PWM. Schematik maps them to your board in the app.
Specialists: Teensy for high-clock audio and USB, Adafruit SAMD boards running CircuitPython or the Arduino IDE, proper STM32 eval kits, and the micro:bit classroom ecosystem. Schematik builds target ESP32, Arduino Uno, and Pico; come here when you have a specific reason to.
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