The Basic:bit is a basic breakout board for the micro:bit. It has a buzzer and three groups of GVS pins(P0/P1/P2) on the board. Each group of GVS pins separately leads out the IO port, 3V port and GND port on micro:bit.
While this basic:bit is small size with simple a structure, it is more than enough for most users to complete most of their micro:bit projects.