START A BITParts · Boards
Micro:bit
BBC Micro:bit V2 by micro:bit Educational Foundation ↗
A small computer to program with blocks, Python or C++: 25 lights, two buttons, a speaker, a microphone, sensors and radio.
2Use it
| Pin or leg | What it is for |
|---|---|
| P0, P1, P2 | the big rings: read a sensor, light an LED, send a servo signal; they can read analog too |
| P8, P13 to P16 | small pins on the edge, reached with the pin:bit |
| 3V | 3.3 V out for small parts |
| GND | 0 V: join it to the GND of every part |
- Download a program with the USB cable, or run it from the battery pack.
- The pins give 3.3 V: never connect a 5 V signal straight to a pin.
- Join its GND to the GND of every part you wire to it.
- P0 is also the music pin, P5 and P11 are buttons A and B: keep other parts off them.
The idea behind it, step by step: Meet the Micro:bit
Used in
3Facts
| Logic | 3.3 V: the pins are not made for 5 V |
|---|---|
| Power | USB, or 3 V from 2 AAA batteries |
| Current for parts | up to about 190 mA from its 3V pin |
| Inside | accelerometer, compass, temperature, light, microphone, speaker |
Kinds you may find
| V2 | speaker, microphone and touch logo: the one we use |
|---|---|
| V1 | no speaker, no microphone, no touch logo, less memory |
More to read
- Datasheet ↗
- Pins and how they are wired (pin map) ↗
- How to download a program to the Micro:bit ↗
- How to update its firmware ↗
- Back to the program it came with ↗