Elecfreaks Breakout Board for the BBC micro:bit

PINS & CONNECTORS

DETAILS

Standard GVS Port

Among the standard GVS ports, the working voltage of the yellow part（P0~P7， P10）is 3.3V, while the working voltage of the blue part（P8, P9, P11~P16）can be shifted between 3.3V and 5V through a voltage switch. Beneath each I/O port, there are pins for VCC and GND. These pins are differentiated by different colors, which enable you to connect your extension module easily. The spread of pins is fully compatible with the Octopus series products.

Voltage Switch

Sliding this switch, we can change the voltage of the blue IO ports（P8, P9, P11~P16）between 3.3V and 5V.

You can see its working range below:

Serial Port

The working voltage of the serial port is available to be shifted between 3.3V and 5V through the voltage switch. Connect TX to P8，RX to P12. The left pins are bidirectional serial port, which can run both input and output. The right female header is a one-way output serial port.

Note : To use this port, we have to initialize it according to the program the below:

DIMENSION

DISPLAY

Example 1 Music Broadcast

Hardware Connection

Connect passive buzzer module to PO.

CODE EXAMPLE