Tutorial

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4. Before switching on, you need to insert the configured SD card into the Raspberry Pi. For details, please refer
to the third chapter of the document. Otherwise, the servo will not rotate to the middle position after booting. If SD
card is not inserted, the servo needs to be rotated to the middle position manually.
After debugging, remove the servo and battery holder, and take the 18650 batteries out of the Holder Set. Do not
rotate the rotation axis before the servo fixed to the rocker arm. Otherwise, you need to re-debug the servo.