Shop OBEX P1 Docs P2 Docs Learn Events
Parallax Position Controller (PPC) does not ramp speed when decreasing speed — Parallax Forums

Parallax Position Controller (PPC) does not ramp speed when decreasing speed

SeariderSearider Posts: 290
edited 2009-07-03 23:29 in Robotics
I am trying to vary the speed of my robot using the PPC while it is in motion. I is easy to increase the speed because the PPC will automatically ramp the speed from the old speed to the new speed. My problem is that the PPC does not ramp speed when a decrease in speed is needed and will jump from the old speed to the new speed. My question is: Am I missing something or is my only option to code my own speed ramp algorithm in spin· to compensate for this idiosyncrasy of the PPC

[noparse][[/noparse]edit: change title to expand non-standard acronym)

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔

Searider

Post Edited (Searider) : 7/8/2009 1:02:23 AM GMT

Comments

  • Mike GreenMike Green Posts: 23,101
    edited 2009-07-03 13:57
    What's a PPC?

    It helps to post your source code (as an attachment to a message ... not cut and paste).
  • SeariderSearider Posts: 290
    edited 2009-07-03 23:29
    Sorry Mike. PPC := Parallax Position Controller. Sold with the Wheel and motor kit. My question in around the specifications of the Parallax Position Controller and not my code. At least I don't have defect in my code that I am trying to figure out. Rather, I am curious if anyone else has figured out a way to modify the speed in a downward direction without stopping that will take advantage of the Speed Ramp algorithm that is part of the Parallax Position Controller.

    ▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔

    Searider
Sign In or Register to comment.