IP Configuration

lib/NeoPixelBus_by_Makuna/examples/NeoPixelBrightness/NeoPixelBrightness.ino

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+// NeoPixelBrightness
+// This example will cycle brightness from high to low of
+// three pixels colored Red, Green, Blue.  
+// This demonstrates the use of the NeoPixelBrightnessBus 
+// with integrated brightness support
+//
+// There is serial output of the current state so you can 
+// confirm and follow along
+//
+
+#include <NeoPixelBrightnessBus.h> // instead of NeoPixelBus.h
+
+const uint16_t PixelCount = 3; // this example assumes 3 pixels, making it smaller will cause a failure
+const uint8_t PixelPin = 14;  // make sure to set this to the correct pin, ignored for Esp8266
+
+#define colorSaturation 255 // saturation of color constants
+RgbColor red(colorSaturation, 0, 0);
+RgbColor green(0, colorSaturation, 0);
+RgbColor blue(0, 0, colorSaturation);
+
+// Make sure to provide the correct color order feature
+// for your NeoPixels
+NeoPixelBrightnessBus<NeoRgbFeature, Neo800KbpsMethod> strip(PixelCount, PixelPin);
+
+// you loose the original color the lower the dim value used
+// here due to quantization
+const uint8_t c_MinBrightness = 8; 
+const uint8_t c_MaxBrightness = 255;
+
+int8_t direction; // current direction of dimming
+
+void setup()
+{
+    Serial.begin(115200);
+    while (!Serial); // wait for serial attach
+
+    Serial.println();
+    Serial.println("Initializing...");
+    Serial.flush();
+
+    // this resets all the neopixels to an off state
+    strip.Begin();
+    strip.Show();
+
+    direction = -1; // default to dim first
+    
+    Serial.println();
+    Serial.println("Running...");
+
+    // set our three original colors
+    strip.SetPixelColor(0, red);
+    strip.SetPixelColor(1, green);
+    strip.SetPixelColor(2, blue);
+  
+    strip.Show();
+}
+
+
+void loop()
+{
+    uint8_t brightness = strip.GetBrightness();
+    Serial.println(brightness);
+    
+    delay(100);
+
+    // swap diection of dim when limits are reached
+    //
+    if (direction < 0 && brightness <= c_MinBrightness)
+    {
+      direction = 1;
+    }
+    else if (direction > 0 && brightness >= c_MaxBrightness)
+    {
+      direction = -1;
+    }
+    // apply dimming
+    brightness += direction;
+    strip.SetBrightness(brightness);
+
+    // show the results
+    strip.Show();
+}
+