So for now let’s consider the PPM/PWM matter closed.
However I’d still very much appreciate some input on the other part:
First of… I wish to identify the different components of a standard servos. This is how I see it (please correct me if I’m wrong?):
- A DC motor
- Some gears
- A potmeter
- A motor controler (also reffered to as a speed controller?)
The motor controller receives a signal (in our case from the Arduino) which tells the servo to move to a specific position. It then reads the current position from the potmeter and determines how much and in which direction the DC motor should be moved and sends an appropiate signal to the DC motor.
Is this correct? Am I missing something? And what kind of signal is sent from the motor controller to the DC motor?