The rudder signal tester module is controlled by microcontroller, with two control modes, which can be switched by button.
Servo drive mode and servo signal capture mode respectively.
Servo drive mode can output PWM square wave with high level of 0.5ms~2.5ms and fixed period of 50hz, which can be used to drive the servo.
Signal capture mode can be used to test the output signal of other servo drive boards, displaying 50~999 high level time in 10us units.
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