vex_joystick_deadzone_example.c

/************************************************************
Joystick Dead-zone Example Code
John Holbrook, December 2016
Writen for VRC 8768, Huntington High School
************************************************************/
//set the radius here (put this near the top of your file)
#define DEAD_ZONE_RADIUS 20

task main()
{
	//initialize these at the top of the main() task
	int vexRT1, vexRT2, vexRT3, vexRT4;


	while (true){//this is just the normal infinite loop in which all your control code runs

		//at the top of the loop we define the values of the integers declared above,
		//which will be the joystick raw values if they are within DEAD_ZONE_RADIUS of the center,
		//or 0 otherwise. I used ternary operators in order to do each channel in one line,
		//but you could just as well use a series of if/else statements
		vexRT1 = abs(vexRT[Ch1]) <= DEAD_ZONE_RADIUS ? 0 : vexRT[Ch1];
		vexRT2 = abs(vexRT[Ch2]) <= DEAD_ZONE_RADIUS ? 0 : vexRT[Ch2];
		vexRT3 = abs(vexRT[Ch3]) <= DEAD_ZONE_RADIUS ? 0 : vexRT[Ch3];
		vexRT4 = abs(vexRT[Ch4]) <= DEAD_ZONE_RADIUS ? 0 : vexRT[Ch4];

		//so now we just use those integer values in place of the directly-read joystick values
		//in our control code. For example:
		motor[left_drive] = vexRT3;
		motor[right_drive] = vexRT2;
		//or whatever...
	}

}