CTR turning problems

Programming Support VEXcode IQ Technical Support
22

@EngineerMike Debugging rubber duck you say… Looks like I need to find one of my teammates!

23

devducks-by-devrant2
devducks-by-devrant21200×1021 180 KB

Must get the cape!

5 Likes
24

You shouldn’t be doing “=” to compare the sensor and desired value as if it overshoots by even 1 degree, it will turn forever

25

I see, what else can I use? I know you told me to use greater than, but I cant figure out how to implement it

26

There are a couple of ways to handle this.

  1. Look for the difference in the angle of the robot vs your target, and if it’s within a certain distance, exit. In other words, something like:
turnDifference = targetValue - currentValue
if((turnDifference < 2.0) OR (currentValue > targetValue)
   motors.stop

(I realize that the above is not blocks code, but it’s pseudocode that you should be able to translate into blocks.)

  1. Look to see if the current value is greater than the target value.
if(currentValue > targetValue)
   motors.stop

This method is less good, as your robot is going to end up past the desired point every time.

2 Likes