python+树莓派+方向盘打造4G遥控车——之三 PWM控制

参考：https://www.basemu.com/rpi-control-servo-use-pwm.html

import RPi.GPIO as GPIO import time P_SERVO = 22 # GPIO端口号，根据实际修改 fPWM = 50 # Hz (软件PWM方式，频率不能设置过高) a = 10 b =