If you are using the two motors as left and right drive, use the analog joytick values to change the PWM to the motors. Y axis will control the speed of both motors together and the X axis will mix with the Y axis to increase the speed of one and decrease the other to cause a turn.

 

If you are using the two motors as left and right drive, use the analog joytick values to change the PWM to the motors. Y axis will control the speed of both motors together and the X axis will mix with the Y axis to increase the speed of one and decrease the other to cause a turn.

Thanks, will try it.

 

This is a short program I wrote to control a tracked vehicle with two inputs from a radio control receiver:

// R/C Tracked Vehicle Mixer
//This program mixes channel one and two from an RC receiver and drives two track motors.
int pin1 = 7; //Channel 1 input
int pin2 = 8; //Channel 2 input
int motor1 = 9;
int motor2 = 10;
int length1;
int length2;
int chanA;
int chanB;

void setup() {

pinMode(pin1, INPUT);
pinMode(pin2, INPUT);
pinMode(motor1, OUTPUT);
pinMode(motor2, OUTPUT);
digitalWrite (motor1, LOW);
digitalWrite (motor2, LOW);

}

void loop() {

//Read length the incoming R/C signals and scale them
length1 = pulseIn(pin1, HIGH);
length1 = map (length1, 900, 1800, 1000, 2000);
length2 = pulseIn(pin2, HIGH);
length2 = map (length2, 900, 1800, 1000, 2000);

//Mix for left track
chanA = (length2 + (length1 - 1500));
//Check left signal limits
if (chanA > 2000)
{chanA = 2000;}
if (chanA < 1000)
{chanA = 1000;}

//Mix for right track
chanB = (length2 - (length1 - 1500));
//Check right signal limits
if (chanB > 2000)
{chanB = 2000;}
if (chanB < 1000)
{chanB = 1000;}

//Output PWM signal for left track
digitalWrite (motor1, HIGH); //Output PWM signal for left track
delayMicroseconds (chanA);
digitalWrite (motor1, LOW);

//Output PWM signal for right track
digitalWrite (motor2, HIGH);
delayMicroseconds (chanB);
digitalWrite (motor2, LOW);

delay (10);
}

 

Thanks. Will try to understand it and try it out. I am trying to do a snow shovel (Canada), so this will be a real help.