micro:bit honeycomb dot matrix module is a sensor that is fully compatible with the micro:bit control board. This module uses an HT16K33 chip to drive an 8 * 8 dot matrix and controls dot matrix via I2C communication port of the microcontroller, which greatly saves the microcontroller resources. In the experiment, we connect this module to the keyestudio micro:bit golden finger IO shield via a crocodile clip cable, then insert Micro:bit control board to shield. Therefore, we can control dot matrix to display different patterns by setting the corresponding code on the micro:bit control board.

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