Controlling a 12v 80 watt dc motor with an Arduino

#define analogInPin A0
#define pwmOutPin 5

uint16_t sensorValue,outputValue,percentValue;

void setup() {
    pinMode(pwmOutPin,OUTPUT);
    pinMode(analogInPin,INPUT);
}

void loop(){
    // Read the PWM value of the input potentiometer.
    sensorValue = analogRead(analogInPin);
    // map it to the range of the analog out:
    outputValue = map(sensorValue, 0, 1023, 0, 255);
    // map pump speed percent of full scale
    percentValue = map (outputValue, 0, 255, 0, 100);
    // change the analog out value:
    analogWrite(pwmOutPin, outputValue);
}

#define analogInPin A0
#define pwmOutPin 5

uint16_t sensorValue,outputValue,percentValue;

void setup() {
    pinMode(pwmOutPin,OUTPUT);
    pinMode(analogInPin,INPUT);
}

void loop(){
    // Read the PWM value of the input potentiometer.
    sensorValue = analogRead(analogInPin);
    // map it to the range of the analog out:
    outputValue = map(sensorValue, 0, 1023, 0, 255);
    // map pump speed percent of full scale
    percentValue = map (outputValue, 0, 255, 0, 100);
    // change the analog out value:
    analogWrite(pwmOutPin, outputValue);
}

#define analogInPin A0
#define PWM1 3
#define DIR1 5

uint16_t sensorValue,outputValue,percentValue;

void setup() {
    pinMode(PWM1,OUTPUT);
    pinMode(analogInPin,INPUT);
    pinMode(DIR1,OUTPUT);
    digitalWrite(DIR1,HIGH);    //change HIGH to LOW if motor goes wrong way
}

void loop(){
    // Read the PWM value of the input potentiometer.
    sensorValue = analogRead(analogInPin);
    // map it to the range of the analog out:
    outputValue = map(sensorValue, 0, 1023, 0, 255);
    // map pump speed percent of full scale
    percentValue = map (outputValue, 0, 255, 0, 100);
    // change the analog out value:
    analogWrite(PWM1, outputValue);
}

#define analogInPin A0
#define PWM1 3
#define DIR1 5
#define BATTERY A1

uint16_t sensorValue,outputValue,percentValue;
uint32_t batteryVoltage;    //32 bit to prevent overflow
uint32_t tick=0;

void setup() {
  Serial.begin(115200);
  Serial.println("\n\n\n\nHello");
  pinMode(PWM1,OUTPUT);       //set the PWM pin to output
  pinMode(analogInPin,INPUT); //set the potentiometer pin to input
  pinMode(BATTERY,INPUT);     //set the battery pin to input
  pinMode(DIR1,OUTPUT);       //set the dir pin to output
  digitalWrite(DIR1,HIGH);    //set it high - change HIGH to LOW if motor goes wrong way
}

void loop(){
  // Read the PWM value of the input potentiometer.
  sensorValue = analogRead(analogInPin);
  // map it to the range of the analog out:
  outputValue = map(sensorValue, 0, 1023, 0, 255);
  // map pump speed percent of full scale
  percentValue = map (outputValue, 0, 255, 0, 100);
  // change the analog out value:
  analogWrite(PWM1, outputValue);
  batteryVoltage=analogRead(BATTERY);
  if((millis()-tick)>100){    //display 10 times per second
    tick=millis();
    Serial.print("Potentiometer Value = ");
    Serial.println(sensorValue,DEC);
    //convert battery reading to voltage (in milliVolts)
    batteryVoltage*=15000;  //*5000*3
    batteryVoltage/=1024;
    Serial.print("Battery Voltage = ");
    Serial.println(batteryVoltage,DEC);
  }
}