Question
Asked October 10 2017

Community Question

In my R2 build I put the camera with a 180 servo that controls the up and down in the radar eye. I'm using a continuous spin servo to spin the dome and would like the camera to control that servo for side to side tracking, but in settings it appears that it has setup for a 180 degree servo. I tried the min/max with the continuous spin servo but it caused it to spin non stop in either direction depending on if I changed the min or max. Is there a way in scripting to control the continuous spin
servo for tracking?

Thanks
Jeremie
Synthiam
October 11 2017
Just wanted to add that a small multi-conductor slip ring could be used as well. They aren't very common but they can be quite helpful in continuous rotation applications such as R2D2's head:)
October 11 2017
I have that, the dome spins continuous, I was hoping the camera could control the servo for tracking purposes, left or right.
DJ Sures
Synthiam
October 11 2017
The camera control can do that - it's only 3 or 4 mouse clicks. But, you'll need a servo that knows the position. A continuous rotation servo doesn't know it's position.

Find out how a servo works here: http://www.ez-robot.com/Tutorials/Lesson/48?courseId=4

You'll see reference to winch servos. That's a good servo for your use because it has 1,000 degrees rotation or something. Check it out in that above link.
October 11 2017
OK, I didn't even consider the winch servo, you had recommended one for my periscope, which works great BTW, I already have that installed and don't really want to disassemble the lift to pull it out and put it in for the dome rotation.

I will have to get another one once I finish a couple of other projects on the droid, I will come back to this and give that a go!


Thanks
DJ Sures
Synthiam
October 12 2017
Awesome!