I'm experimenting with a small servo motor with the raspberry pi using PWM (pulse-width modulation). My understanding is that the servo should respond to different length of pulse. I should be seeing some motion if I output a constant square wave, right?
And if I output a constant HIGH signal the servo shouldn't do anything.
Is there a way to test for sure that the servo is working properly? I don't have an oscilloscope so I can't really confirm that my code is outputting the way it should - thinking about putting an LED and I should see a blinking light.