I'd like to buy a capacitive touch input robot in order to remote access my iPad but I'm having trouble describing a correct kind of robot.

I would like to keep lag down to an additional 60ms so that it is still a high quality interface.

I would like to have a robotic arm equipped with a capacitive pen that moves to places on the ipad screen based on the mouse or I'd like a array of capacitive pens that emulate the touch of a user.

I guess I'd use Squires software reflect and the mirror function but I'm open to using an SHD camera with the robotic arm and a pixel sensor array with the array of capacitive pens.

Does this make sense? How could I improve the design? What materials would I need to build it myself. Assuming ready built arm? How could I build an array of capacitive touch micro pens?


Since the screen of an iPad is your desired workspace, and all the arm will have to lift is a stylus, this will not have to be a large arm. There are many "hobby" arms built with hobby airplane servos that will probably work for you. I won't list any makes / models because there are many out there.

I am not sure what your comment about lag is about, but if you want a fast arm, you should consider a Delta robot arm configuration. Because the "standard" serial arms mentioned above are not very fast. These are harder to come by. the only hobby level delta arm i have seen was the Robot Army Starter Kit on Kickstarter.

  • $\begingroup$ what about the other design with an array of styluses? $\endgroup$
    – user3949
    Mar 3 '14 at 6:01
  • $\begingroup$ also would this work amazon.com/dp/B00HO15O54/… ? $\endgroup$
    – user3949
    Mar 3 '14 at 6:25
  • $\begingroup$ Yes, this is exactly the type of hobby servo driven arm i was talking about. But you might be able to do better by making a custom 2D arm because you only need the arm to move in the plane. (plus 1 bit of stylus up / down). $\endgroup$
    – Ben
    Mar 4 '14 at 1:51
  • $\begingroup$ great, how slow would it be? who could I get to write the software? $\endgroup$
    – user3949
    Mar 4 '14 at 5:30

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.