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ampel-firmware/ampel-firmware.ino

@@ -71,9 +71,11 @@ void loop() {
   // Check if air is good enough
   if (co2 <= 1000) {
     // Light the LED green if CO2 ppm is low
+    //                   position, red, green, blue
     led_ring.setPixelColor(which_led, 0, 255, 0);
   } else {
     // Red otherwise.
+    //                   position, red, green, blue
     led_ring.setPixelColor(which_led, 255, 0, 0);
   }
   led_ring.show();