Lilypad - light sensor with RGB

light sensor rgb.txt

/*
LilyPad ProtoSnap Plus Activity 7: Sensing Light
SparkFun Electronics
modified by ringotron5000
Modified by K Margenau
for LilyMini
16 Feb 2018

darkness is low value, maybe 5
light is higher , maybe 190
so let's make threshold 100


******************************************************************************/

// Create variables for the pins we'll use:

int sensorPin = 1;

int redLED = 5;
int greenLED = 6;
int blueLED = 7;

void setup()
{
  // Initialize the sensor pin as an input, but without a pullup
  // (Pullups are only used for switch inputs)

  pinMode(sensorPin, INPUT);

  // Initialize the output pins:

  pinMode(redLED, OUTPUT);
  pinMode(greenLED, OUTPUT);
  pinMode(blueLED, OUTPUT);

  // Initialize the serial monitor:

  Serial.begin(9600);
}

void loop()
{
  int sensorValue;

  // Read the sensor value (will be 0 to 1023):

  sensorValue = analogRead(sensorPin);

  // Print out the sensor reading to the serial monitor:

  Serial.print("sensor value: ");
  Serial.println(sensorValue);

if (sensorValue < 100)
{
  digitalWrite(redLED, HIGH);
    digitalWrite(greenLED, HIGH);
  digitalWrite(blueLED, HIGH);
  delay(100);
  digitalWrite(redLED, LOW);
    digitalWrite(greenLED, LOW);
  digitalWrite(blueLED, LOW);
  delay(100);
}
else
{
     digitalWrite(redLED, LOW);
    digitalWrite(greenLED, LOW);
  digitalWrite(blueLED, LOW);
}

 
}