add arduino code

Author: Bonnie Barrilleaux

arduino/Nagalier_SciHackDay2013/Nagalier_SciHackDay2013.ino

@@ -0,0 +1,92 @@
+//LED code for Nagaliers. Changes your lighting based on your activity level logged by Fitbit. 
+/*************************************************************************************/
+
+#include "FastSPI_LED2.h"
+#define NUM_LEDS 60
+
+struct CRGB leds[NUM_LEDS];
+int colorval = 0; // Variable to hold the changing "mood light" strip color.
+int steps=0;
+
+void setup() {
+  LEDS.setBrightness(250);
+  LEDS.addLeds<WS2811, 5>(leds, NUM_LEDS);
+    Serial.begin(9600);
+}
+
+
+void loop() {
+  //get the step count
+     if  (Serial.available() > 0) {
+      steps = Serial.read();
+     }
+    //light up the strip!
+    if(steps==255) rainbow(colorval % 384); //if you've met your step goal
+    else if(steps==0) angryFlash(); // if you're behind schedule
+    else  RGBcolorFill(steps); // if you're making progress
+    colorval++; // increment the color for the reward rainbow when you've met step goals.
+}
+ 
+ 
+//Fill the strip with 1/3 of a rainbow, starting from color c
+void rainbow(uint32_t c) {
+  uint16_t i;
+    for (i=0; i < NUM_LEDS; i++) {
+      leds[i] = RGBWheel(((i * 128 / NUM_LEDS) + c) % 384); // 128 = 384/3 = 1/3 of the rainbow.
+    }
+    LEDS.show();
+}
+
+// Fill the strip with a single color.
+void RGBcolorFill(uint32_t c) {
+  int i;
+  c = map(c, 0, 255, 0, 300);
+  for (i=0; i < NUM_LEDS; i++) {
+      leds[i] = RGBWheel(c); // set all active pixels on
+  }
+  LEDS.show();
+ }
+
+// Flash red.
+void angryFlash() {
+  int i;
+  //Turn strip red.
+  for (i=0; i < NUM_LEDS; i++) {
+      leds[i] = CRGB(0, 255, 0); // set all active pixels red
+  }
+  LEDS.show();
+  delay(100);    
+  //Turn strip off.
+  for (int i=0; i < NUM_LEDS; i++) {
+  memset(leds, 0,  NUM_LEDS * sizeof(struct CRGB));
+  }
+  LEDS.show();
+  delay(100);
+ }
+
+/* RGB Color Wheel Helper function */
+//Input a value 0 to 384 to get a color value.
+CRGB RGBWheel(uint16_t WheelPos) {
+  byte r, g, b;
+  switch(WheelPos / 128)
+  {
+    case 0:
+      r = 127 - WheelPos % 128; // red down
+      g = WheelPos % 128;       // green up
+      b = 0;                    // blue off
+      break;
+    case 1:
+      g = 127 - WheelPos % 128; // green down
+      b = WheelPos % 128;       // blue up
+      r = 0;                    // red off
+      break;
+    case 2:
+      b = 127 - WheelPos % 128; // blue down
+      r = WheelPos % 128;       // red up
+      g = 0;                    // green off
+      break;
+  }
+  return(CRGB(b, r, g));    //colors are in a stupid order.
+}
+
+