micro:bit

Compact educational microcontroller board with a programmable LED matrix, buttons, accelerometer, compass, and Bluetooth for coding and IoT projects.
Pinout
- 0 (P0)large pad 0Type · Signal
- 1 (P1)large pad 1Type · Signal
- 2 (P2)large pad 2Type · Signal
- 3Vlarge pad 3VType · Power
- GNDlarge pad GNDType · Ground
- P3Type · GPIO
- P4Type · GPIO
- P5Type · GPIO
- P6Type · GPIO
- P7Type · GPIO
- P8Type · GPIO
- P9Type · GPIO
- P10Type · GPIO
- P11Type · GPIO
- P12Type · GPIO
- P13Type · GPIO
- P14Type · GPIO
- P15Type · GPIO
- P16Type · GPIO
- P19Type · GPIO
- P20Type · GPIO
| Pin | Position | Type |
|---|---|---|
| 0 (P0) | large pad 0 | Signal |
| 1 (P1) | large pad 1 | Signal |
| 2 (P2) | large pad 2 | Signal |
| 3V | large pad 3V | Power |
| GND | large pad GND | Ground |
| P3 | GPIO | |
| P4 | GPIO | |
| P5 | GPIO | |
| P6 | GPIO | |
| P7 | GPIO | |
| P8 | GPIO | |
| P9 | GPIO | |
| P10 | GPIO | |
| P11 | GPIO | |
| P12 | GPIO | |
| P13 | GPIO | |
| P14 | GPIO | |
| P15 | GPIO | |
| P16 | GPIO | |
| P19 | GPIO | |
| P20 | GPIO |
Pin details
21 connections- 0 (P0)large pad 0Signal
- 1 (P1)large pad 1Signal
- 2 (P2)large pad 2Signal
- 3Vlarge pad 3VPower
- GNDlarge pad GNDGround
- P3GPIO
- P4GPIO
- P5GPIO
- P6GPIO
- P7GPIO
- P8GPIO
- P9GPIO
- P10GPIO
- P11GPIO
- P12GPIO
- P13GPIO
- P14GPIO
- P15GPIO
- P16GPIO
- P19GPIO
- P20GPIO
Start wiring
USB · 3.3 V
Verify supply voltage and logic levels before powering up.
Module pins: 3V, GND, 0 (P0), 1 (P1), 2 (P2), P3, P4, P5. Schematik maps them to your board in the app.
Other MCUs
228 other optionsSpecialists: 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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