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我想用舵机Servo类里的angel函数指定舵机为某个角度，然后读出此时这种信号的频率、占空比等信息，请问大家怎样才能实现呢？
from pyb import Servo s1 = Servo(1) s1.angle(90) print(s1.angle()) print(s1.pulse_width()) print(s1.calibration())