Thin micro:bit expansion board with 6 color-coded Gravity 3-pin connectors for 3 analog and 6 digital/PWM channels, selectable 3.3/5 V per port via jumper. Keyed connectors prevent reverse insertion; external 5 V/2 A via Micro-USB is required for 5 V mode or servo use.
| Pin | Type |
|---|---|
| Gravity 3-pin ports (6) | Signal |
| 3.3V5V jumper | Power, Control |
| micro:bit edge connector | Signal |
| 5V input (Micro-USB) | Power |
| GND | Ground |
| 3.3V | Power |
USB · 3.3 V
Verify supply voltage and logic levels before powering up.
Module pins: 5V input (Micro-USB), 3.3V, GND, Gravity 3-pin ports (6), micro:bit edge connector. 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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