Manual

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servo shake if the robot is doing actions.
Voice sensor environmental thresholds
Voice sensor is to return different voltage by means of
receiving sounds on cellphone. If the surrounding is
too noisy, you need to increase the threshold value of
sensors. Print out the received voice value by serial
write and then set the threshold value higher than
surrounding noise according to returned receive
values. When using the serial port, connect micro:bit
with computer by USB.