potV2

Initializing the potV2 Class

A PotentiometerV2 is created by using the following constructor:

The potV2 constructor creates a potV2 object in the specified Three Wire Port:

Parameter	Description
port	The 3-Wire Port that the PotentiometerV2 is connected to, whether it’s a port on the Brain, or a 3-Wire Expander.

A Brain or 3-Wire Expander must be created first before they can be used to create an object with the potV2 Class constructor.

// Create the Brain.
brain Brain;
// Construct a PotentiometerV2 "potentiometerV2" with the potV2 class.
potV2 potentiometerV2 = potV2(Brain.ThreeWirePort.A);

This potentiometerV2 object will be used in all subsequent examples throughout this API documentation when referring to potV2 class methods.

Class Methods

angle()

The angle(units) method returns the angle measured by the PotentiometerV2.

Parameters	Description
units	A valid RotationUnit or percent. The default is degrees.

Returns: A double representing the angle measured by the PotentiometerV2 in the specified units.

// Get the current angle of the PotentiometerV2 in the
// range 0 - 250 degrees.
double angle = potentiometerV2.angle(degrees);

// Print the current angle of the PotentiometerV2 to the
// Brain's screen.
Brain.Screen.print(angle);

changed()

The changed(callback) method registers a callback function for when the value measured by the PotentiometerV2 changes.

Parameters	Description
callback	The callback function to be called when the value measured by the PotentiometerV2 changes.

Returns: None.

// Define the potentiometerChanged function with a void
// return type, showing it doesn't return a value.
void potentiometerChanged() {
  // The brain will print that the value of the PotentiometerV2
  // changed on the Brain's screen.
  Brain.Screen.print("PotentiometerV2 changed");
}

int main() {
  // Initializing Robot Configuration. DO NOT REMOVE!
  vexcodeInit();

  // Run potentiometerChanged when the value measured by
  // the PotentiometerV2 changes.
  potentiometerV2.changed(potentiometerChanged);
}