Vex CORTEX Manuel d'instructions télécharger pdf (Page 135)

Reference

Project Lead The Way

and Carnegie Mellon Robotics Academy

/ For use with VEX

Robotics Systems

Potentiometers • 3

Potentiometers Sample Code

bIfiAutonomousMode = false; //Enable Radio Control mode

while(true

) //Loop forever

{

if(vexRT[Ch5] == 127) //If the top Ch5 button is pressed...

{

if(SensorValue[armPotentiometer] < 900) //If the Potentiometer

{ //has not reached its maximum point...

motor[port6] = 31; //turn the motor on forward.

}

else //If the Potentiometer has reached

{ //its maximum point...

motor[port6] = 0; //turn the motor off.

}

if(vexRT[Ch5] == -127) //If the bottom Ch5 button is pressed...

{

if(SensorValue[armPotentiometer] > 550) //If the Potentiometer

{ //has not reached its minimum point...

motor[port6] = -31; //turn the motor on in reverse.

}

else //If the Potentiometer has reached

{ //its minimum point..

motor[port6] = 0; //turn the motor off.

}

Limiting Arm Movement with the Potentiometer

This code allows the rotating arm of a robot to be remote controlled using the Ch5 rear

buttons on the Radio Control Transmitter. The Potentiometer is used to prevent the motor

from spinning once the arm has reached its minimum and maximum points.

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Vex CORTEX Manuel d'instructions Page 135