Here is a video of the side-to-side testing.
I was the camera man, another guy with no experience was controlling it.
And the code for that part.
#include <AFMotor.h> // imported AFMotor library
AF_DCMotor motor1(1);
AF_DCMotor motor2(2);
AF_DCMotor motor3(3);
AF_DCMotor motor4(4);
void setup() {
}
void loop() {
int speed = analogRead(2);
speed = map(speed, 0, 1023, -255, 255);
if (speed < 0)
{
motor2.run(FORWARD);
motor2.setSpeed(abs(speed));
motor3.run(BACKWARD);
motor3.setSpeed(abs(speed));
}
if (speed > 0)
{
motor2.run(BACKWARD);
motor2.setSpeed(speed);
motor3.run(FORWARD);
motor3.setSpeed(speed);
}
int speed2 = analogRead(3);
speed2 = map(speed2, 0, 1023, -255, 255);
if (speed2 < 0)
{
motor1.run(BACKWARD);
motor1.setSpeed(abs(speed2));
motor4.run(FORWARD);
motor4.setSpeed(abs(speed2));
}
if (speed2 > 0)
{
motor1.run(FORWARD);
motor1.setSpeed(speed2);
motor4.run(BACKWARD);
motor4.setSpeed(speed2);
}
}