I am looking to build a servo controlled camera pan and tilt device. It appears that the only way I can get fast and accurate servo response is with a closed loop system.
It appears that the only way I can get fast and accurate servo response is with a closed loop system.
With a closed system I can add a lot of dampening in the controller to make the movements slower - smoother
What I don't know is what the feedback looks like from the servo motors
A hobby type servo is a closed loop system, it's just that the PID type control, position feedback signal and motor H-drive are all included inside the servo, the signal you send it is the desired 'setpoint' position you desire and it will drive until it's final position equals the setpoint you are sending it.
I think they use closed loop in that the pan/tilt platform position always follows the joystick position. Their open loop video below just uses the joystick to operate what are probably continous rotation servos.
Because they say something doesn't make it a fact, it's the Internet dudes.
QuoteBecause they say something doesn't make it a fact, it's the Internet dudes.NO! Surely not Lefty?.....You mean that sometimes the Internet is, like, well, wrong?Surely Wikipedia's always right? Say it's so!
Have no fear, I'm on it.