Do I have to use an expansion board when using the controller?

Do I have to use an expansion board when using the controller?
2024-07-11 23:37:30 We recommend using the expansion board according to the needs and functions. Using the expansion board will greatly reduce the wiring difficulty when using the sensors. If you do not use the expansion board, please confirm you can solve the sensor wiring problem by yourself. Especially when using Micro:bit or controlling the sensor, it must be used with the control board.
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