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This expansion board is an IO port expansion board that supports micro: bit. It can draw out all resources on the micro: bit and also comes with a buzzer. By...

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This expansion board is an IO port expansion board that supports micro: bit. It can draw out all resources on the micro: bit and also comes with a buzzer. By connecting the jumper cap to the P0 pin, the P0 pin can be released. The small and unique size is very suitable for various small projects of micro: bit.
Feature
  • Comes with buzzer;
  • 3 rows of 20pin GPIO interfaces distinguished by yellow, red and black;
  • Small and compact, suitable for various small projects of micro:bit.

 

Tutorial 1

Tutorial 2

Jargon buster

Plain-language definitions for the technical terms used above.

GPIO
General-purpose input/output pins are microcontroller pins you can set in software to read signals, switch devices on and off, or connect to peripherals. The number of GPIO pins matters because it limits how many buttons, LEDs, sensors, and other parts you can wire directly to the board.
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