/* Arduino Projects for Dummies
 * by Brock Craft 
 *
 * Chapter 12: Building a Home Sensing Station
 * Reads values from Analog Sensors on Pins 2,3 and 4
 * Posts these values as three datastreams to 
 * a single Xively feed.
 *
 * This code is just for testing an calibrating your
 * temperature and light sensors
 *
 * v0.1 14.05.2013
*/

const int lightSensorPin=2;
const int tempPin1=3;
const int tempPin2=4;

void setup() {
  Serial.begin(9600);
}

void loop() {
  float lightLevel = map(analogRead(lightSensorPin),0,1023,0,100);
 
  float temperature1 = ((getVoltage(tempPin1) -.5) * 100L);
  float temperature2 = ((getVoltage(tempPin2) -.5) * 100L);

  Serial.print("Temp 1 ('C): ");
  Serial.print(temperature1);
  Serial.print(", Temp 2 ('C): ");
  Serial.print(temperature2);
  Serial.print(", Light (V): ");
  Serial.println(lightLevel);
  delay(250);
}

float getVoltage(int pin){
return (analogRead(pin) * .004882814);
}