Create object in array

Forum 2005-2010 (read only) Software Syntax & Programs
#1

I already posted this question in the adafruit forum, but I think someone here can answer it as well.

I bought a motorshield from Adafruit for my robotics project. It comes with an AFMotor library from which I can create an object representing a DC motor. To create this object I have to supply two parameters.

The example shows the command

AF_DCMotor motor(2, MOTOR12_64KHZ); // create motor #2, 64KHz pwm

to define an object called motor with the given specs. But I want to define multiple motor objects in an array where the max number of the array can be defined with a Const value:

const int mm = 4;
AF_DCMotor Motor1[mm];

and then set the values like the motor numbers and frequency.

I want my code to be flexible to use in more than one project without having to change a lot of code in the Arduino sketch. Is there a way to create this array of objects and still set their properties (obviously the motornumber is not the same for all created objects...)?

#2

It isn't pretty, but can't you do something like:

const int mm = 4;

AF_DCMotor motor(2, MOTOR12_64KHZ); // create motor #2, 64KHz pwm 
// more motor1, motor2 etc.

AF_DCMotor* Motors[mm] = {&motor, ... };
#3

I do not know if this uses correct parameters, but something on the likes of this:

AF_DCMotor motors[4] = {
 AF_DCMotor(1, MOTOR12_64KHZ),
 AF_DCMotor(2, MOTOR12_64KHZ),
 AF_DCMotor(3, MOTOR12_64KHZ),
 AF_DCMotor(4, MOTOR12_64KHZ)
};
#4

@AlphaBeta: I think your construction is possible, but is there a way to do this with a given const for the number of motors? I need to define the motors at startup but this is with a variable number of objects in the array. I just can't seem to get this right with a variable number of objects in the array.

#5