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9.1.3 9.1.3 Principle
The rotation angle of the servo can be controlled by adjusting the duty cycle of the PWM (pulse width modulation)
signal.
The period of the standard PWM (pulse width modulation) signal is fixed at 20ms (50Hz). Theoretically, pulse width
should be within 1ms ~ 2ms, but in fact, the range is 0.5ms ~ 2.5ms, corresponding to the rotation angle of 0° to 180°.
Corresponding servo Angle value:
120
Chapter 9. 9. Robot Arm Projects
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