Part1：Working Principle（1）- Servo Control
Diagram1：PWM Signal and Servo COntrol
1)PWM signal is at low signal level usually,but it will change to high signal level every 2ms time,and lasts for 1~2 ms,that is ,the pause width is 1~2 ms.
2)The arm of the servo will turn to a certain angle according to the pause width of the PWM signal recieved by the servo.
3)1ms<->+45º(Max angle turning CCW),2ms<->-45º(Max angle turning CW).
4)The control surface will turn to a certain angle dragged by the servo arm through the rod.
5)+45º<->+20º(Max angle of the control surface turning CCW),-45º<->-20º(Max angle
Of the control surface turing CW).
6)1.5ms<->0º of servo arm turning angle<->neutral point of the control surface. ...Continue Reading