Example Code for micro:bit-Subtraction Operation

Hardware Preparation

• Math & Automatic expansion board for micro:bit, Quantity: 1
• micro:bit, Quantity: 1

Software Preparation

Makecode graphical programming, Mind+ platform.
Makecode Library Address: https://github.com/DFRobot/pxt-Math-Automatic.
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Wiring Diagram

No specific wiring required.

Other Preparation Work

Install the Makecode library from https://github.com/DFRobot/pxt-Math-Automatic.
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Sample Code

Subtraction Operation Example Code Download: https://makecode.microbit.org/_MECYEzF147DP

Result

Generate random A and B within 0~50. Then the micro:bit LED matrix displays A-B for once. Players have to input the correct answer in 10 seconds. If the input answer is right, micro:bit displays "√", if it is not or timeout, display "×".

Additional Information

No additional information.