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8.2 Micro:bit LED Matrix Display
1) Description
LED stands for Light Emitting Diode. The micro:bit has 25 individually-programmable LEDs, allowing you to
display text, numbers, and images.
The micro:bit MakeCode Block editor has built-in library. So you can use it to control the 25 LED lights on and off,
showing the different images.
In the experiment, we drive the 25 LED lights show a big heart and a small heart images.
2) Test Code
23