added ino-file that controls the leds

arduino/warning_leds.ino

@@ -0,0 +1,60 @@
+#include <Arduino.h>
+#include <FastLED.h>
+
+#define NUM_LEDS 68
+#define DATA_PIN 6
+
+
+CRGB leds[NUM_LEDS];
+
+void setup() { 
+   FastLED.addLeds<WS2812, DATA_PIN, GRB>(leds, NUM_LEDS);
+   FastLED.setBrightness(84);
+   Serial.begin(115200);
+}
+
+void loop() { 
+//leds[0] = CRGB::Red; 
+
+    if (Serial.available() > 0)
+    {
+      int incomingByte = Serial.read();
+
+      if (incomingByte == 'w')
+      {
+        // Serial.println("WARNING");
+        FastLED.setBrightness(100);
+         for (int i=0; i<NUM_LEDS; ++i)
+         {
+            leds[i] = CRGB::Yellow;
+         }
+      }
+
+      if (incomingByte == 'd')
+      {
+         FastLED.setBrightness(100);
+//         Serial.println("DANGER");
+         for (int i=0; i<NUM_LEDS; ++i)
+         {
+              leds[i] = CRGB::Red;
+         }
+      }
+
+      if (incomingByte == 'g')
+      {
+        FastLED.setBrightness(40);
+//         Serial.println("DANGER");
+         for (int i=0; i<NUM_LEDS; ++i)
+         {
+              leds[i] = CRGB::Green;
+         }
+      }
+
+
+    }
+
+    FastLED.show(); 
+    delay(30); 
+}
+
+