MicroBit Board BBC micro-bit V2.21

The new BBC micro:bit V2.21 adopts faster ARM Cortex-M4 nRF52833 processor, integrates 2.4G radio/BLE Bluetooth 5.0, now includes built-in MEMS microphone, speaker and touch-sensitive logo pin, allowing people to create with greater ease than ever before. By sensing sound and touch.
The micro:bit V2.21 has a motion sensor that combines a 3-axis sensing accelerometer, along with a magnetometer that can be used as a compass or a magnetic field strength sensor.
Memory increased by 700% from 16KB to 128KB and RAM 256KB to 512KB giving the device much more capacity.
CPU upgraded from Cortex M0 at 16MHz to Cortex M4 with floating point at 64MHz.
The gold edge connectors have small indentations that allow for much easier prototyping with alligator clips that won’t keep falling out.. The board can now provide 200mA to accessories, up from 90mA in the previous board version.. Additional input capacity is achieved with the use of a sensor Touch to accompany the two current buttons. Version 2 now has a power LED and can be turned off instead of having to remove the batteries. BLE to support both AI and machine learning.