For me, as a beginner, it looks like all Phidgets motor controllers only support RC protocol / PWM signal.
Are there any Phidgets I can use to control e.g. a Dynamixel
servo ? ( They use for example RS-485. )
Or do you know a company selling servos like the HSR-2645CR
RC servo but
with two actuator arms, one at the front and another at the back for a more stable mounting ?