A hardware-based servo controller is provided using the Servo library. It utilizes the PIO state machines and generates the appropriate servo control pulses, glitch-free and jitter-free (within crystal limits).
Up to 8 Servos can be controlled in parallel assuming no other tasks require the use of a PIO machine.
See the Arduino standard Servo documentation for detailed usage instructions. There is also an included sweep example.
The defaults in the Servo library are conservatively set to avoid damage in the case of over-driving. The pulse widths individual servos, especially the no-name or clones, occasionally need tweaking.
You can set the min and max servo pulse width in the attach command, with default values used in most Arduino cores of 540/2400: `myServo.attach(D3, 540, 2400)`
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