Bluetooth Wireless Communication
The on board 2.4GHz transceiver supports Bluetooth communications via the Nordic S140 SoftDevice, which provides a fully qualified Bluetooth low energy stack. This allows the micro:bit to communicate with a wide range of Bluetooth devices, including smartphones and tablets.
To learn how to connect a micro:bit to your phone or tablet using Bluetooth, you can refer to Lesson 1 of the Robots Unplugged course.
Specifications
| Item | details |
|---|---|
| Stack | Bluetooth 5.1 with Bluetooth Low Energy(BLE) |
| Band | 2.4GHz ISM (Industrial, Scientific and Medical) 2.4GHz..2.41GHz |
| Channels | 50 2MHz channels, only 40 used (0 to 39), 3 advertising channels (37,38,39) |
| Sensitivity | -93dBm in Bluetooth low energy mode |
| Tx Power | -40dBm to 4dBm |
| Role | GAP Peripheral & GAP Central |
| Congestion avoidance | Adaptive Frequency Hopping |
| Profiles | BBC micro:bit profile |
| More Info | Bluetooth |