Creative Tech Course: Arduino Function Example 4

ArduinoFunctionExample4.ino

/*
  Arduino Function Example 4 - Range
  Gets a range from analogWrite  - part of a series to experiment with functions
  Creative Technology Course by Philip van Allen - ArtCenter College of Design
  */
 
const int sensor = A0;
int range = 0;
 
// the setup function runs once when you press reset or power the board
void setup() {
  Serial.begin(9600);
}
 
// the loop function runs over and over again forever
void loop() {
  range = sensorRange();
  Serial.println(range);
 
  /*
  switch(range) {
    case 0:
      Serial.println("In range zero");
      break;
    case 1:
      Serial.println("In range one");
      break;
    case 2:
      Serial.println("In range two");
      break;
    case 3:
      Serial.println("In range three");
      break;
  }
  */
  
}
 
int sensorRange() {
  int sensorValue = analogRead(sensor);
  sensorValue = map(sensorValue,0,1023,0,3);
  return sensorValue;
}