Fun with with processing :)

potar-motors-and-servo-motor.pde

#include <Servo.h>
#include <ServoTimers.h>

int sensorSpeedValue;
int sensorDirectionValue;
int motorSpeedValue;
int servoValue;

Servo zeServo;
Servo zeOhterServo;

int potarSpeedPin = 0;
int potarDirectionPin = 1;
int potarservoPin = 2;

int motorDirectionPin = 7;
int motorSpeedPin = 6;

int servoMotorPin = 5;
int otherServoMotorPin = 4;

void setup()
{
  pinMode(motorDirectionPin, OUTPUT);
  pinMode(motorSpeedPin, OUTPUT);
  pinMode(potarSpeedPin, INPUT);
  pinMode(potarDirectionPin, INPUT);
  zeServo.attach(servoMotorPin);
  zeOhterServo.attach(otherServoMotorPin);
}

void loop()
{
  sensorSpeedValue = analogRead(potarSpeedPin);
  sensorDirectionValue = analogRead(potarDirectionPin);
  servoValue = analogRead(potarservoPin);
  
  // Determine motor direction
  if (sensorDirectionValue > 512)
  {
    digitalWrite(motorDirectionPin, HIGH);
    Serial.println("Going left!");
  }
  else if (sensorDirectionValue <= 512)
  {
    digitalWrite(motorDirectionPin, LOW);
    Serial.println("Going right!");
  }
   
  // send motor speed
  motorSpeedValue = sensorSpeedValue / 4;
  analogWrite(motorSpeedPin, motorSpeedValue);
  Serial.print("motor Value     "); Serial.println(motorSpeedValue);

  zeServo.write(servoValue /5.68);
  zeOhterServo.write((1024 - servoValue) /5.68);
  
  delay(15);
}