VCS V5 deadzone?

Programming Support VEX Coding Studio Tech Support
#1 

if(Controller1.Axis3.value()>15){}

does not work. How would I go about making a controller deadzone?

#2

You almost have it right.
Instead, you need to use the absolute value of the joystick channel.


if(abs(Controller1.Axis3.value())>15){}

Alternatively, you can use the ternary operator to make a line like this:


joystickAxis3 = Controller1.Axis3.value();
joystickAxis3 = abs(joystickAxis3) > 15 ? joystickAxis3 : 0;

You could also use an if statement


joystickAxis3 = Controller1.Axis3.value();
if(abs(joystickAxis3) < 15) joystickAxis3 = 0;
1 Like
Drift in my program HELP ME!
#3

in terms of responsiveness, which method would you reccomend? I remember on the old robotc we used an if statement

#4

They all do the exact same, and there is not much of a difference, but I prefer the ternary approach, as it allows for some good code neatness.


const int deadZone = 15;
int joystickAxis3 = 0;
int joystickAxis1 = 0;
while(true)
{
    joystickAxis3 = Controller1.Axis3.value();
    joystickAxis1 = Controller1.Axis1.value();
    joystickAxis3 = abs(joystickAxis3) > deadZone ? joystickAxis3 : 0;
    joystickAxis1 = abs(joystickAxis3) > deadZone ? joystickAxis1 : 0;
    setBasePower(joystickAxis3 + joystickAxis1, joystickAxis3 - joystickAxis1);
    sleep(20);
}
1 Like
#5

I think I understand now, thank you! What coding studio are you guys using? Thinking about swapping to RMS because the other coder and I use multiple devices, but cell connection can be spotty in Hawaii and we’ve had to change things at comps in the past.

#6

I am an avid PROS user, but I understand that it can be a bit daunting and confusing for beginners.
I would recommend RMS over VCS for sure.
If you do choose to try PROS, it is worth it to read through this excellent tutorial series www.learncpp.com
Good luck!

#7

Can you use this in reverse as well?

#8

It is best not to revive old threads. I would hope you don’t do this again.

@DRow