I use my Arduino with Adafruit PCA9685 servo controller. To set PWM signals I use the provided library: https://github.com/adafruit/Adafruit-PWM-Servo-Driver-Library
It allows easily set PMM signal and works good. But how can I "unset" PWM signal for a certain pin?
If a PWM siganl is active, the servo stucks on the current position and can't be moved by hand, but only by setting other pulse length. So I need to move servo and then "free" it.