commit 9f9f6dd6c1170adaa614657c76a56ea772bd10a0
Author: Patrick Valk <valkp002@hva.nl>
Date:   Fri Nov 18 09:57:01 2016 +0100

    init

diff --git a/chameleon_code.ino b/chameleon_code.ino
new file mode 100644
index 0000000..6791089
--- /dev/null
+++ b/chameleon_code.ino
@@ -0,0 +1,161 @@
+#include <Metro.h>  // library
+#include <math.h>
+Metro ledlightup = Metro(60);
+Metro processdata = Metro(50);
+Metro TcsTrigger = Metro(10);
+
+int s0 = 8, s1 = 9, s2 = 10, s3 = 11; // port definition of color sensor
+int out = 2;
+int flag = 0; // initialization
+int counter = 0;
+int countR = 0, countG = 0, countB = 0;
+void setup()
+{
+  Serial.begin(115200);
+  pinMode(s0, OUTPUT);
+  pinMode(s1, OUTPUT);
+  pinMode(s2, OUTPUT);
+  pinMode(s3, OUTPUT);
+
+  analogWrite(3, 0);
+  analogWrite(5, 0);
+  analogWrite(6, 0);
+
+}
+
+void TCS()
+{
+  digitalWrite(s0, HIGH);
+  digitalWrite(s1, HIGH);
+  attachInterrupt(0, ISR_INTO, CHANGE);
+
+}
+
+void ISR_INTO()
+{
+  counter++;
+}
+
+int Raverage = 0;
+int Baverage = 0;
+int Gaverage = 0;
+
+void loop()       //   call function
+{
+  TCS();
+  if (TcsTrigger.check()) {
+    Tcstrigger();
+  }
+  if (processdata.check()) {
+    procedata();
+  }
+  if (ledlightup.check()) {
+    ledup();
+  }
+
+}
+void Tcstrigger()  //   data acquisition
+{
+  flag++;
+  if (flag == 1) {
+    digitalWrite(s2, LOW);
+    digitalWrite(s3, LOW);
+    countR = counter;
+    digitalWrite(s2, HIGH);
+    digitalWrite(s3, HIGH);
+  }
+  else if (flag == 2) {
+    countG = counter;
+    digitalWrite(s2, LOW);
+    digitalWrite(s3, HIGH);
+
+  }
+  else if (flag == 3) {
+    countB = counter;
+    digitalWrite(s2, LOW);
+    digitalWrite(s3, LOW);
+    flag = 0;
+  }
+  counter = 0;
+}
+
+void  procedata()        // data processing
+{
+  static int Rinput[5] = {
+    0, 0, 0, 0, 0
+  }
+  , Binput[5] = {
+    0, 0, 0, 0, 0
+  }
+  , Ginput[5] = {
+    0, 0, 0, 0, 0
+  };
+
+  for (int i = 4; i > 0; i--) {
+    Rinput[i] = Rinput[i - 1];
+    Binput[i] = Binput[i - 1];
+    Ginput[i] = Ginput[i - 1];
+  }
+
+  if (countR < 2500)
+    Rinput[0] = countR;
+  else
+    Rinput[0] = Rinput[1];
+
+  if (countB < 2500)
+    Binput[0] = countB;
+  else
+    Binput[0] = Binput[1];
+
+  if (countG < 2500)
+    Ginput[0] = countG;
+  else
+    Ginput[0] = Ginput[1];
+
+  Raverage = 0;
+  Baverage = 0;
+  Gaverage = 0;
+
+  for (int i = 0; i <= 4; i++) {
+    Raverage += Rinput[i];
+    Baverage += Binput[i];
+    Gaverage += Ginput[i];
+  }
+  Raverage /= 5;
+  Baverage /= 5;
+  Gaverage /= 5;
+
+}
+
+void  ledup()     // data output
+{
+  int ledvalueR = Raverage;
+  int ledvalueG = Gaverage;
+  int ledvalueB = Baverage;
+
+  ledvalueR = constrain(ledvalueR, 350, 1700);
+  ledvalueB = constrain(ledvalueB, 350, 1500);
+  ledvalueG = constrain(ledvalueG, 350, 1650);
+  Serial.print("R:");
+  Serial.print(Raverage, DEC);
+  Serial.print(" ");
+  Serial.print(ledvalueR, DEC);
+  Serial.print("B:");
+  Serial.print(Baverage, DEC);
+  Serial.print(" ");
+  Serial.print(ledvalueB, DEC);
+  Serial.print("G:");
+  Serial.print(Gaverage, DEC);
+  Serial.print(" ");
+  Serial.println(ledvalueG, DEC);
+
+
+  ledvalueR = map(ledvalueR, 350, 1700, 0, 255);
+  ledvalueB = map(ledvalueB, 350, 1500, 0, 255);
+  ledvalueG = map(ledvalueG, 350, 1650, 0, 255);
+
+  analogWrite(3, ledvalueR);
+  analogWrite(6, ledvalueB);
+  analogWrite(5, ledvalueG);
+
+}