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Help please: Robot keeps going into a circle — Parallax Forums

Help please: Robot keeps going into a circle

robotlover4everrobotlover4ever Posts: 2
edited 2013-11-15 14:34 in Robotics
I created a code for a robot to go through this maze thing that I had built for it. The problem? It keeps going in circles. It can't be a problem with the code because the code has worked on my friends robot, but it won't work on mine. At first, I thought it was a battery problem.. but new batteries hasnt solved anything.

Whats the problem?

Here is the code for my robot.


[/FONT]
[FONT=arial]' {$STAMP BS2}[/FONT]
[FONT=arial]DEBUG "Program Running!"[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]counter        VAR     Word[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]FREQOUT 4, 2000, 3000                       ' Signal program start/reset.[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]FOR counter = 1 TO 220                      ' Number of pulses - run time.[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]  PULSOUT 13, 650                            ' Left servo full speed ccw.[/FONT]
[FONT=arial]  PULSOUT 12, 825                            ' Right servo full speed cw.[/FONT]
[FONT=arial]  PAUSE 20[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]NEXT[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]FOR counter = 1 TO 40                      ' Number of pulses - run time.[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]  PULSOUT 13, 650                            ' Left servo full speed ccw.[/FONT]
[FONT=arial]  PULSOUT 12, 750                            ' Right servo full speed cw.[/FONT]
[FONT=arial]  PAUSE 20[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]NEXT[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]FOR counter = 1 TO 45[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]  PULSOUT 13, 650[/FONT]
[FONT=arial]  PULSOUT 12, 845[/FONT]
[FONT=arial]  PAUSE 20[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]NEXT[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]FOR counter = 1 TO 40[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]  PULSOUT 13, 650[/FONT]
[FONT=arial]  PULSOUT 12, 750[/FONT]
[FONT=arial]  PAUSE 20[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]NEXT[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]FOR counter = 1 TO 120                      ' Number of pulses - run time.[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]  PULSOUT 13, 650                            ' Left servo full speed ccw.[/FONT]
[FONT=arial]  PULSOUT 12, 825                            ' Right servo full speed cw.[/FONT]
[FONT=arial]  PAUSE 20[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]NEXT[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]FOR counter = 1 TO 40[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]  PULSOUT 13, 750[/FONT]
[FONT=arial]  PULSOUT 12, 850[/FONT]
[FONT=arial]  PAUSE 20[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]NEXT[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]FOR counter = 1 TO 95[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]  PULSOUT 13, 650[/FONT]
[FONT=arial]  PULSOUT 12, 825[/FONT]
[FONT=arial]  PAUSE 20[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]NEXT[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]FOR counter = 1 TO 40[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]  PULSOUT 13, 750[/FONT]
[FONT=arial]  PULSOUT 12, 850[/FONT]
[FONT=arial]  PAUSE 20[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]NEXT[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]FOR counter = 1 TO 67[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]  PULSOUT 13, 650[/FONT]
[FONT=arial]  PULSOUT 12, 825[/FONT]
[FONT=arial]  PAUSE 20[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]NEXT[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]FOR counter = 1 TO 37[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]  PULSOUT 13, 750[/FONT]
[FONT=arial]  PULSOUT 12, 850[/FONT]
[FONT=arial]  PAUSE 20[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]NEXT[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]FOR counter = 1 TO 25[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]  PULSOUT 13, 650[/FONT]
[FONT=arial]  PULSOUT 12, 825[/FONT]
[FONT=arial]  PAUSE 20[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]NEXT[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]FOR counter = 1 TO 40[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]  PULSOUT 13, 650[/FONT]
[FONT=arial]  PULSOUT 12, 750[/FONT]
[FONT=arial]  PAUSE 20[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]NEXT[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]FOR counter = 1 TO 35[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]  PULSOUT 13, 650[/FONT]
[FONT=arial]  PULSOUT 12, 825[/FONT]
[FONT=arial]  PAUSE 20[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]NEXT[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]FOR counter = 1 TO 40[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]  PULSOUT 13, 650[/FONT]
[FONT=arial]  PULSOUT 12, 750[/FONT]
[FONT=arial]  PAUSE 20[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]NEXT[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]FOR counter = 1 TO 210[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]  PULSOUT 13, 650[/FONT]
[FONT=arial]  PULSOUT 12, 825[/FONT]
[FONT=arial]  PAUSE 20[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]NEXT[/FONT]
[FONT=arial]
[/FONT]
[FONT=arial]END

Comments

  • davejamesdavejames Posts: 4,047
    edited 2013-11-15 08:33
    Hello robotlover4ever - welcome to the Forum!

    FYI - the double post in the Basic Stamp area is a no-no according to the Forum Guidelines and has been removed.

    http://forums.parallax.com/showthread.php/134682-Forum-Guidelines


    ...and maybe some basic information concerning what type of robot, servos, anything else might help us help you in determining the problem.
  • GordonMcCombGordonMcComb Posts: 3,366
    edited 2013-11-15 08:42
    Whenever using servos in a robot be sure they are first calibrated. Servos like those from Parallax have a calibration trimpot inside them.

    You want to write a small program that sends "centering" pulses only. If you are using the Parallax continuous rotation servos there is an example of this in the documentation -- see the section "BASIC Stamp Calibration Code - for all BS2 models."
  • GenetixGenetix Posts: 1,774
    edited 2013-11-15 14:34
    One of your servos might not be working. The robot will turn if one servo doesn't move.
    First check your electrical connections and then try testing each servo by itself.
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