Micro:bit Educational Foundation · nRF52
BBC micro:bit v2
A classroom favourite with an LED matrix, buttons, speaker, microphone, motion sensor and radio all built in.
BLEThread/Zigbee3.3 V logicIntegrated
Typical price
$20
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Specifications
| Maker | Micro:bit Educational Foundation |
|---|---|
| Chip | nRF52833 |
| CPU | Arm Cortex-M4F |
| Clock speed | 64 MHz |
| Wi-Fi | None |
| Bluetooth | Bluetooth 5.1 (LE) |
| Zigbee / Thread radio | Yes (802.15.4) |
| GPIO pins | 19 usable |
| ADC | 6 channels, 12-bit |
| DAC | None |
| Flash | 512 KB |
| RAM | 128 KB |
| Logic level | 3.3 V |
| Power input | 3V coin cell/AAA pack or USB |
| Deep sleep (typ.) | ~500 µA |
| Active current (typ.) | ~15 mA |
| Form factor | Integrated |
| USB | Micro-USB |
| Programming | MakeCode, MicroPython, Scratch, C++ |
| Released | 2020 |
Typical values. Sleep current is approximate; whole-board numbers are higher than the bare chip's datasheet figure.
Pros
- Everything built in — no wiring to get started
- Block coding (MakeCode) or MicroPython
- Huge educational resources
Cons
- Edge-connector pins need adapters
- Limited flash and RAM
- Not for building polished end products
Best use cases
- 01Teaching kids and beginners
- 02Quick sensor and radio demos
- 03Robotics kits
- 04Classroom science projects
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