Interfacing with Parallax servo controller -USB

[saifizi]

Dear All,

I'm very happy because I can use the Parallax Multi-Controller Servo Motor to control my Parallax Standart Servo Motor. Now, I using 2 kind of servo motor from parallax.

1. Parallax Standart Servo Motor

2. Parallax Continuous Servo Motor

I have one problem to set a position for Parallax Continuous Servo Motor. For now I can set the servo Parallax Continuous Servo Motor to stop at 500 position servo. But when give signal to move position 400 or 600 the motor just move clock wise movement counter clock wise without stopping like Parallax standart Servo Motor.

Can you help me to settle down this problem. I attacth to you the manual of Parallax Continuous Servo Motor for your reference. I very hope get any help from you all. Thank you very much.

[JJSD]

It sounds like the issue you are having is due to the nature of the continuous servo.  With a continuous rotating servo what happens is when you send it a command it interprets that not as a position to go to, but as a speed to turn.  A command that would make a normal servo move to a position and stay there makes the continuous rotation servo just turn at a set speed.  If you send a identical command to both servos the standard one will move to a position and stop.  The continuous servo will just keep turning.  Think of it as a speed control and motor built into a module that accepts servo commands, but lacks the position control of a standard servo.

-Josh