first implementation of 'chase';

new implementation of breathe that seems less blinky (but looks less nice)

led_control.cpp

@@ -5,12 +5,13 @@ WS2812 LED(LED_COUNT);
 
 int led_mode;
 int last_led_mode;
-
+int pos=0;
 cRGB led_off;
 
 
 cRGB led_steady;
-
+cRGB led_blue;
+cRGB led_dark_blue;
 
 
 cRGB led_breathe;
@@ -20,9 +21,18 @@ void setup_leds() {
 led_off.r=0;
 led_off.g=0;
 led_off.b=0;
-led_steady.r=30;
+led_steady.r=160;
-led_steady.g=30;
+led_steady.g=160;
-led_steady.b=30;
+led_steady.b=160;
+led_blue.r=0;
+led_blue.g=0;
+led_blue.b=255;
+
+led_dark_blue.r=0;
+led_dark_blue.g=0;
+led_dark_blue.b=127;
+
+
     LED.setOutput(LED_DATA_PIN);
 	LED.setColorOrderRGB();  // Uncomment for RGB color order
     led_mode=LED_MODE_STEADY;
@@ -66,6 +76,12 @@ void set_all_leds_to(cRGB color) {
         }
 
 }
+
+int brightness = 0;    // how bright the LED is
+int fadeAmount = 1;    // how many points to fade the LED by
+int chase_pixels = 1;
+int chase_threshold = 6;
+int current_chase_counter=0;
 void update_leds() {
     if (led_mode != last_led_mode) {
         initialize_led_mode(led_mode);
@@ -74,16 +90,44 @@ void update_leds() {
     } else if (led_mode == LED_MODE_HEATMAP) {
     } else if (led_mode == LED_MODE_BREATHE) {
         // algorithm from http://sean.voisen.org/blog/2011/10/breathing-led-with-arduino/
-        int brightness = (exp(sin(millis()/2000.0*PI)) - 0.36787944)*108.0;
+      //  int brightness =  (exp(sin(millis()/2000.0*PI)) - 0.36787944)*108.0;
+         // change the brightness for next time through the loop:
+  brightness = brightness + fadeAmount;
+
+  // reverse the direction of the fading at the ends of the fade: 
+  if (brightness == 0 || brightness == 160) {
+    fadeAmount = -fadeAmount ; 
+  }     
+
+       
+       
         led_breathe.r=brightness;
         led_breathe.g=brightness;
         led_breathe.b=brightness;
+        set_all_leds_to(led_breathe);
+        LED.sync();
 
     } else if (led_mode == LED_MODE_RAINBOW) {
     } else if (led_mode == LED_MODE_CHASE) {
-    } else if (led_mode == LED_MODE_STEADY) {
+      if(current_chase_counter++<chase_threshold) {
+        return;
+      }
+      current_chase_counter=0;
+      LED.set_crgb_at(pos-chase_pixels,led_off);
+      LED.set_crgb_at(pos,led_dark_blue);
+
+      pos+=chase_pixels;
+      if (pos>LED_COUNT||pos<0) {
+         chase_pixels = -chase_pixels; 
+    pos+=chase_pixels;
+    
     }
+      LED.set_crgb_at(pos,led_blue);
+        LED.sync();
       
+    } else if (led_mode == LED_MODE_STEADY) {
         LED.sync();
+    }
+
         last_led_mode = led_mode;
 }