PCA9685 Servo Driver icon PCA9685 Servo Driver Drive 16 servos over EZB I2C with a PCA9685 PWM controller, using ARC servo commands and hardware-timed outputs. Try it →

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#1  

That is normal behavior when servos are first powered on.

That is why, for instance, the JD tutorial says to power him up lying on his back so he doesn't fall down.

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#2  

thanks for the info